Code Maven - Keywords

This is the list of keywords or topics you can find articles about. You can look up these keywords from anywhere on the site by typing the keyword in the box at the top of the page.

#{}
- Variables and Variable Interpolation in Ruby
$$
- Run only one instance of a Ruby program at the same time - self locking
$()
- Show number of files in several directory trees using Shell
$0
- Bash shell path relative to current script
- Bash: get absolute path to current script
$_GET
- Accept GET and POST parameters in PHP - use htmlspecialchars
$_POST
- Accept GET and POST parameters in PHP - use htmlspecialchars
$filter
- Filters in AngularJS
$inc
- Counter in MongoDB client
$index
- Record editor using Angular JS
- TODO in AngularJS
$log
- Dependency Injection in AngularJS - with and without introspection
- Logging in AngularJS applications
$logProvider
- Logging in AngularJS applications
$PROGRAM_NAME
- Run only one instance of a Ruby program at the same time - self locking
$rootScopeProvider
- Almost infinite recursive template in AngularJS for representing tree structures
$routeProvider
- Angular example: simple router
$scope
- Dependency Injection in AngularJS - with and without introspection
- Hello World with AngularJS module and controller
$timeout
- Automatic counter using AngularJS
&&
- Logical operators in Ruby (and, or, not), (&&, ||, !)
()
- List Comprehension vs Generator Expressions in Python
*
- Python: avoid importing everything using a star: *
+
- Convert String to Number in Ruby
- Variables and Variable Interpolation in Ruby
++
- Counter Examples
+=
- Count digits in Ruby
+e
- Bash set -e to stop script on failure
+x
- Bash set -x to print statements as they are executed
-e
- Bash set -e to stop script on failure
- Python: fixing random numbers for testing
-maxdepth
- Show number of files in several directory trees using Shell
-mindepth
- Show number of files in several directory trees using Shell
-q
- Python: fixing random numbers for testing
-x
- Bash set -x to print statements as they are executed
..
...
404
- How to return a 404 error in Flask application
:
- Bash shell always succeed with ||: suffix
?:
- The conditional operator in Ruby
@Grab
- Groovy: read CSV file
[]
- Analyze Apache log file - count localhost in Ruby
- Arrays in Ruby
- Count web server hits using Ruby
- List Comprehension vs Generator Expressions in Python
_
__doc__
__filename
__iter__
__main__
__name__
__version__
_id
``
- Show number of files in several directory trees using Shell
a11y
- CMOS #19: Job van Achterberg - Inclusive design
- CMOS #5 Lucy Greco - DictationBridge - helping the visually impaired
- Web site Accessibility (aka. a11y)
absent
- Ansible playbook remove directory
- Ansible playbook remove file
absolutePath
- Groovy: temporary file with autodelete
Access-Control-Allow-Origin
- Sites with public API with CORS - Cross-Origin Resource Sharing enabled
accessibility
- CMOS #19: Job van Achterberg - Inclusive design
- CMOS #5 Lucy Greco - DictationBridge - helping the visually impaired
- Web site Accessibility (aka. a11y)
addBadge
- Jenkins pipeline: add badges
addEventListener
- Handling user events in JavaScript
- Input Output in plain JavaScript
- Mobile swipe left, swipe right of HTML pages using vanilla JavaScript
addEventListener innerHTML
- Multiple counters with plain JavaScript and local storage
- On-load counter with JavaScript and local storage
addShortText
- Jenkins Pipeline: Add some text to the job using manager.addShortText
Adobe
- What does an SRE do at Adobe? - Our guest is Rachael Bates
after_request
- Python Flask: execute code after every request
agent
- Jenkins Pipeline - Hello World
Agile
- Pair Programming
- Quality and Value
alert
- Introduction to JavaScript - basic output
and
- Logical operators in Ruby (and, or, not), (&&, ||, !)
Android
- CMOS #17: Moyinoluwa Adeyemi creating Android Watch in Yorùbá
angular.module
- Hello World with AngularJS module and controller
angularjs
- AngularJS Skeleton
- AngularJS UI with Bootstrap Skeleton
angularJS
- AngularJS Tutorial
ANSI
- ANSI command line colors with Python
Ansible
- Ansible
- Ansible - localhost
- Ansible on Ubuntu in VirtualBox environment - using Python 3
- Books
- Enable passwordless sudo for ansible
- Getting Started with Ansible managing CentOS on Digital Ocean
- Install and configure Nginx using Ansible
- Install the ELK stack on CentOS using Ansible
- Installing Ansible
- Installing Perl and CPAN modules using Ansible
- Reboot using Ansible
- Setup for Learning Ansible
- Stop and disable apt-get using Ansible
- Waiting with Ansible, pausing a Playbook
ansible-playbook
- Ansible playbook: print debugging statement
- Ansible playbook: print output of command
ansible_python_interpreter
- Ansible playbook listing uptime using python3
Apache
- Set up CGI with Apache on Ubuntu Linux
API
- Digital Ocean API
append
- Groovy: reading and writing files - appending content
Apple
- Display notification from the Mac command line
apt-get
- Stop and disable apt-get using Ansible
- Upgrade Linux packages and install new ones
- Vagrant and VirtualBox on Ubuntu 17.10 and CentOS 7
argparse
- Python argparse to process command line arguments
args
- Echo with Flask and Python
- Groovy command line arguments (args)
arguments
- JavaScript function that accepts any number of arguments
- Stack trace in JavaScript
argv
- argv - raw command line arguments in Node.js
ARGV
- ARGV - the command line arguments of a Ruby program
- Analyze Apache log file - count localhost in Ruby
- Count web server hits using Ruby
- Solution: rectangle in Ruby (CLI and STDIN = Standard IO)
array
- Arrays in Ruby
Array
- Basic data structures in Ruby (Scalar, Array, Hash)
- Raku Interactive Shell - values in $ variables
Array.splice
- TODO in HTML5 and plain JavaScript
ArrayList
- Groovy get the list of keys of a map as an ArrayList
- Groovy: Lists
as
- Groovy casting
askopenfilename
- Python: How to get input file on Windows
assert
- Python Pytest assertion error reporting
assertEqual
- Testing the Flask poll
assertRegexpMatches
- Testing the Flask poll
assertTrue
- Testing the Flask poll
at
- at - running a command at some time in the future in Linux (relative time or absolute time)
atexit
- Python atexit exit handle - like the END block of Perl
Atom
- Add code snippets to Atom - the text editor
- Snippets for text files in Atom - the text editor
automated testing
- Project Management, Quality Assurance, and Test Automation in Open Source Projects
Automation
- DevOps, CI/CD, and Automation assesment questions
- Services provided by Gabor Szabo at Code Maven
- Test Automaton Engineer
AWS
- Working on s3path the Python File-System/Path like interface for AWS S3 with Lior Mizrahi
aws
- aws - the command line tool for AWS Amazon Web Services
Bailador
- Bailador
base
- Convert String to Number in Ruby
BaseHTTPRequestHandler
- Static web server in Python
Bash
- Bash prompt showing git status
- Count number of lines in a file and divide it by number of seconds in a day using Bash
- Set up CGI with Apache on Ubuntu Linux
bash
- Functions in Linux shell (bash)
- Print version number of Python module
- Unix/Linux Shell - Bash
- ps does not show name of the shell script only -bash or bash - Linux
basicConfig
- Python: logging in a library even before enabling logging
bat
- Jenkins Pipeline: Collect exit code from external commands
- Jenkins Pipeline: running external programs with sh or bat
Beautiful Soup
- Python: Parsing HTML with Beautiful soup
before_first_request
- Python Flask: execute code once before first request
- Python Flask: logging
before_request
- Flask: display elapsed time
- Python Flask: execute code before every request
bind
- Bind9 DNS records for SPF1 and DKIM1 for a domain used by mailgun
BitBucket
- Bitbucket
Bitbucket
- Limit Bitbucket pipelines to specific branches
BitesIO
- Convert Python numpy array to in memory binary image using PIL or OpenCV
boolean
- Groovy value types
Bootcamp
- Programming Bootcamp for Scientists #1
- Programming Bootcamp for Scientists #10
- Programming Bootcamp for Scientists #11
- Programming Bootcamp for Scientists #12
- Programming Bootcamp for Scientists #13
- Programming Bootcamp for Scientists #14 - f-strings and formatted printing
- Programming Bootcamp for Scientists #15 - list methods, FIFO, LIFO
- Programming Bootcamp for Scientists #16 - Solutions for Queue, Stack, MasterMind
- Programming Bootcamp for Scientists #17 - lists: sort, range, enumerate; tuples
- Programming Bootcamp for Scientists #18 - Algorithm complexity and solutions for the list exercises
- Programming Bootcamp for Scientists #19
- Programming Bootcamp for Scientists #2
- Programming Bootcamp for Scientists #20
- Programming Bootcamp for Scientists #21
- Programming Bootcamp for Scientists #22
- Programming Bootcamp for Scientists #23
- Programming Bootcamp for Scientists #24
- Programming Bootcamp for Scientists #25
- Programming Bootcamp for Scientists #26
- Programming Bootcamp for Scientists #27
- Programming Bootcamp for Scientists #28
- Programming Bootcamp for Scientists #29
- Programming Bootcamp for Scientists #3
- Programming Bootcamp for Scientists #30
- Programming Bootcamp for Scientists #31
- Programming Bootcamp for Scientists #32
- Programming Bootcamp for Scientists #33
- Programming Bootcamp for Scientists #34
- Programming Bootcamp for Scientists #35
- Programming Bootcamp for Scientists #36
- Programming Bootcamp for Scientists #37
- Programming Bootcamp for Scientists #38
- Programming Bootcamp for Scientists #39
- Programming Bootcamp for Scientists #4
- Programming Bootcamp for Scientists #40
- Programming Bootcamp for Scientists #41
- Programming Bootcamp for Scientists #42
- Programming Bootcamp for Scientists #5
- Programming Bootcamp for Scientists #6
- Programming Bootcamp for Scientists #7
- Programming Bootcamp for Scientists #8
- Programming Bootcamp for Scientists #9
- Python Programming Bootcamp for Scientists
bootstrap
- AngularJS UI with Bootstrap Skeleton
- Bootstrap Skeleton
br
- HTML basics
break
- Bash: while loop - break - continue
- Groovy: for loop - break - continue
- for-else in Python indicating "value not found"
bs
- Python: Parsing HTML with Beautiful soup
BUILD_USER
- Jenkins Pipeline BuildUser plugin
BUILD_USER_EMAIL
- Jenkins Pipeline BuildUser plugin
BUILD_USER_FIRST_NAME
- Jenkins Pipeline BuildUser plugin
BUILD_USER_ID
- Jenkins Pipeline BuildUser plugin
BUILD_USER_LAST_NAME
- Jenkins Pipeline BuildUser plugin
Buildah
- Build docker image with buildah
BuildUser
- Jenkins Pipeline BuildUser plugin
- Jenkins Pipeline: Send e-mail notifications
builtins
- Super-global variables in Python exploiting the builtins package
Bundler
- CMOS #8: Lynn 'Cyrin' Conway on Bundler, RubyGems and Ruby Together
byte
- Groovy value types
C#
- C# .NET
C++
- Patch rdfind, a C++ project to avoid checksum checking
Calendar
- How to sync Google calendar with an external calendar?
callback
- Plain function or Callback - An example in Python
callee
- Stack trace in JavaScript
caller
- Stack trace in JavaScript
canExecute
- Groovy file and directory attributes
capsys
- Mocking input and output for Python testing
Casio
- The Spaceship Operator
cat
- ANSI command line colors with Python
- Nano the simplest editor for Linux
catch
- Groovy Exception handling (try, catch, Exception)
- Groovy throw (raise) exception
CentOS
- PHP development environment on CentOS
- Vagrant and VirtualBox on Ubuntu 17.10 and CentOS 7
cgi
- Hello World using CGI in Ruby
CGI
- Set up CGI with Apache on Ubuntu Linux
chat
- CMOS #16: Jan Henning Thorsen and Marcus Ramberg about Convos, the web-based IRC client
check_output
- qx or backticks in python - capture the output of external programs
checkout
- Jenkins Pipeline: git checkout using reference to speed up cloning large repositories
Chrome
- Open JavaScript Console
CI
- Add GitHub Action CI to the Net-Async-Redis-XS Perl module
- CI for Win32-Wlan Perl module
- CI notification strategy
- Continuous Integration (CI)
- DevOps work - setting up CI and Docker for the course management project with Thomas Klausner
- GitLab CI job building a Docker image
- Introduce Continuous Integration (CI) to the starpy Python project
- Limit Bitbucket pipelines to specific branches
- Services provided by Gabor Szabo at Code Maven
- Testing a Docker image created by GitLab CI
- The 2022 December CI Challenge
class
- Basic data structures in Ruby (Scalar, Array, Hash)
- Groovy classes
CLI
- Create your own interactive shell with cmd in Python
click
- Handling user events in JavaScript
clipboard
- Download charts from Google Forms on Ubuntu Linux
- Save content of clipboard to file in Ubuntu Linux
closures
- Groovy: Closures
cmd
- Create your own interactive shell with cmd in Python
cmos
- CMOS #10: Michael Kennedy - Talk Python To Me
- CMOS #11: Mohammad S. Anwar - Contributing to CPAN every single day
- CMOS #12: Randal Schwartz the host of FLOSS Weekly
- CMOS #13: Trung Đinh Quang on GitHub Explorer - a progressive web app
- CMOS #14: Johnny Ray Austin - Mo - Django - VueJS
- CMOS #15: Prosper Otemuyiwa - Laravel
- CMOS #16: Jan Henning Thorsen and Marcus Ramberg about Convos, the web-based IRC client
- CMOS #17: Moyinoluwa Adeyemi creating Android Watch in Yorùbá
- CMOS #18: Timi Ajiboye on Client Manager, Resque, Friendly ID and other Rails gems
- CMOS #19: Job van Achterberg - Inclusive design
- CMOS #1: Jason Crome on Perl Dancer 2
- CMOS #2: Sawyer X on Perl 5
- CMOS #3: Joel Berger on Mojolicious
- CMOS #4: Tom Hudson - gron for making JSON greppable
- CMOS #5 Lucy Greco - DictationBridge - helping the visually impaired
- CMOS #6: Tally Barak on GraphQL
- CMOS #7: Obinwanne Hill on RestiveJS
- CMOS #8: Lynn 'Cyrin' Conway on Bundler, RubyGems and Ruby Together
- CMOS #9: Ire Aderinokun - Khaled Bot, Can I Use Embed, Formhack
code
- Switch to interactive mode from a Python script
CodeMaven
- Better Predicting Wine Cultivar with Feature Selection
- Exercise: Check if number is prime
- Exercise: Counter
- Exercise: Implement Reverse Polish Calculator
- Exercise: Queue
- Exercise: ROT13
- Golang
- HAProxy
- How to send a Pull-Request on GitHub - fixing the content of the Code-Maven site
- Materialize CSS
- Materialize CSS: Rows and columns - a grid
- One dimensional spacefight (aka. The spaceship operator)
- Perl Career with Pete Sergeant
- Python: capturing, hiding, and reporting warnings
- Service Provider
- Software Circuit Breaker
- Strategy and Tooling teams
- dot file or configuration files
color
- ANSI command line colors with Python
commit-msg
- Enforcing commit message format in Git - on the client side
comparison
- Handlebars conditional
compile
- Introduction to Handlebars, the JavaScript templating system
compute
- gcloud - the command line tool for Google Cloud Platform
computers
- Jenkins pipeline: List agents by name or by label
conda
- Showing speed improvement using a GPU with CUDA and Python with numpy on Nvidia Quadro 2000D
config
- Almost infinite recursive template in AngularJS for representing tree structures
- gcloud - the command line tool for Google Cloud Platform
configparser
- Using the Open Weather Map API with Python
confirm
- JavaScript input with prompt and confirm
Console
- Groovy: read from console (STDIN, keyboard)
console
- Logging in JavaScript applications
- Open JavaScript Console
- Stack trace in JavaScript
console.log
- Introduction to JavaScript - basic output
- Logging in AngularJS applications
consul
- consul
containsKey
- Groovy map (dictionary, hash, associative array)
continue
- Bash: while loop - break - continue
- Count digits in Groovy
- Groovy: for loop - break - continue
controller
- Hello World with AngularJS module and controller
convert
- Resize images on the command line using image magick
Convos
- CMOS #16: Jan Henning Thorsen and Marcus Ramberg about Convos, the web-based IRC client
CORS
- Sites with public API with CORS - Cross-Origin Resource Sharing enabled
count
- Groovy: Lists
counter
- Counter Examples
coverage
- Minimal setup for Coverage report at Coveralls for Python projects hosted on GitHub
Coveralls
- Minimal setup for Coverage report at Coveralls for Python projects hosted on GitHub
CPAN
- CMOS #11: Mohammad S. Anwar - Contributing to CPAN every single day
- How to contribute to Meta::CPAN
cpp
- Patch rdfind, a C++ project to avoid checksum checking
CREATE
- Getting started with SurrealDB using Python and Docker
createTempFile
- Groovy: temporary file with autodelete
Crystal
- Binary Palindrom - Crystal
- Crystal
- Crystal part 1 - installation
- Crystal part 2 - puts, print, p!
- Crystal: Swap Nibbles
- Learn Crystal with me!
- Live Crystal Shardbox development with Johannes Müller (straight-shoota)
- Programming Crystal Language Course - part 1
- Sequence without 1-on-1 in Crystal
CSS
- CMOS #13: Trung Đinh Quang on GitHub Explorer - a progressive web app
- CMOS #9: Ire Aderinokun - Khaled Bot, Can I Use Embed, Formhack
- Materialize CSS - Skeleton
CSV
- CSV - Comma Separated Files
- Create and download data in CSV format using plain JavaScript
- Reading CSV file in Ruby
Ctrl-C
- Signal handling: Catch Ctrl-C in Python
Cucumber
- Implementing a feature in the Typescript cucumber-playwright package with Tally Barak
cuda
- Showing speed improvement using a GPU with CUDA and Python with numpy on Nvidia Quadro 2000D
curl
- Digital Ocean API
- Serving web pages over IPv6 and IPv4 and verifying it
- Set up CGI with Apache on Ubuntu Linux
- The importance of using HTTPS
- Using the Open Weather Map API with curl
currentBuild
- How to set the job number and description for a Jenkinsfile in a Jenkins Pipeline?
- Jenkins pipeline: Get previous build status - getPreviousBuild
- Jenkins pipeline: get current user
- Jenkins pipelines: Arbitrary code execution in the shell
- Jenkins: separate jobs for development and production
CV
- Displaying a graph from Cyclic Voltammetry (CV) by Gabriele Meilikhov
cwd
- Python context tools - cwd, tmpdir
daemon
- Convert any script to a Linux service (daemon)
- Python daemon (background service)
Dancer
- CMOS #1: Jason Crome on Perl Dancer 2
Dart
- CMOS #12: Randal Schwartz the host of FLOSS Weekly
DataDog
- Datadog
Datadog
- Statsd with Python
dataset
- Custom HTML Attributes
Date
- Groovy: Date, Time, Timezone
- Show dates in the timezone of the reader using JavaScript
date
- Create temporary directory on Linux with Bash using mktemp
- Getting Started with Ansible managing CentOS on Digital Ocean
- Measure elapsed time in Linux shell using time and date
datetime
- Time left in process (progress bar) in Python
debug
- Ansible playbook: print debugging statement
- Logging in JavaScript applications
def
- Groovy function overloading
- Groovy functions
- Groovy recursive functions
- Groovy variable scope
- Groovy: Undeclared variable - runtime exception - groovy.lang.MissingPropertyException
DELETE
- Getting started with SurrealDB using Python and Docker
delete
- Groovy: temporary file with autodelete
describe-instances
- aws - the command line tool for AWS Amazon Web Services
describe-regions
- aws - the command line tool for AWS Amazon Web Services
description
- How to set the job number and description for a Jenkinsfile in a Jenkins Pipeline?
Desktop
- Add application to quick lanuch in Ubuntu
Devops
- DevOps
- Jenkins
- Jenkins Pipeline - set and use environment variables
DevOps
- DevOps Engineer
- DevOps Invitation
- DevOps vs. DevOps Engineer
- DevOps, CI/CD, and Automation assesment questions
- Improve the compilation time of your project!
dict
- How to insert a dictionary in another dictionary in Python (How to merge two dictionaries)
digestTtl
- Almost infinite recursive template in AngularJS for representing tree structures
Diggers
- Code Diggers
Digital Ocean
- Getting Started with Ansible managing CentOS on Digital Ocean
dir
- First impression with Raku
dirname
- Bash shell path relative to current script
- Bash: get absolute path to current script
display
- Display notification from the Mac command line
displayName
- How to set the job number and description for a Jenkinsfile in a Jenkins Pipeline?
- Jenkins pipeline: List agents by name or by label
div
- Materialize CSS - div container
Django
- CMOS #14: Johnny Ray Austin - Mo - Django - VueJS
dns
- Bind9 DNS records for SPF1 and DKIM1 for a domain used by mailgun
DO
- Digital Ocean API
Docker
- Build Docker image in GitLab CI/CD pipeline
- Build docker image with buildah
- CI for farmworld, a Python package - a failed attempt
- Creating a file on a mounted volume in Docker as the external user (and not as root)
- DevOps work - setting up CI and Docker for the course management project with Thomas Klausner
- Docker
- Docker
- Docker course intro
- Docker course: COPY welcome.txt
- Docker course: Docker Registry
- Docker course: Docker hub
- Docker course: ENTRYPOINT vs CMD
- Docker course: Exercise 1
- Docker course: Hello World
- Docker course: Install Docker
- Docker course: Install curl
- Docker course: Ubuntu htop
- Docker course: Use Ubuntu Docker image
- Docker course: What is Docker?
- Docker course: Why use Docker?
- Docker course: busybox
- Docker course: busybox part 2
- Docker course: container vs. image
- Docker course: create image from container
- Docker course: create image using Dockerfile
- Docker course: crontab
- Docker course: getting help
- Docker course: host - daemon - client
- Docker course: mounting host directory
- Docker course: version and info
- First impression with Raku
- GitLab CI job building a Docker image
- Running Jenkins in Docker
- Services provided by Gabor Szabo at Code Maven
- Testing a Docker image created by GitLab CI
- Use Docker both as regular user and as root (with or without sudo)
docker
- Docker uses a lot more disk-space than docker system df reports
Dockerfile
- Docker course: create image using Dockerfile
- Flask in Docker - development
doctest
- Doctest in Python
- The Algorithms in Python: Testing binary and using doctest
document
- JavaScript Hello World - changing the DOM with getElementById and innerHTML
document.getElementById
- Show ads to visitors based on referrer using JavaScript only
document.referre
- Show ads to visitors based on referrer using JavaScript only
document.write
- Introduction to JavaScript - basic output
DOM
- JavaScript Hello World - changing the DOM with getElementById and innerHTML
downcase
- How to convert a string to UPPERCASE or lowercase in Ruby?
each
- For loop in Ruby (iterating over array elements)
- Groovy: Lists
- Open file and read content in Ruby
- Solution: Sum of numbers in a file implemented in Ruby
each_char
- Iterate over characters of a string in Ruby
eachFile
- Groovy: listing the content of a directory, traversing a directory tree
eachFileRecurse
- Groovy: listing the content of a directory, traversing a directory tree
eachWithIndex
- Groovy: Lists
- Groovy: color selector
ec2
- aws - the command line tool for AWS Amazon Web Services
echo
- Jenkins Pipeline - Hello World
elasticsearch
- Elasticseach administrative and configuration commands
ElasticSearch
- Elastic Search - updating complex data structure
- Install the ELK stack on CentOS using Ansible
- Python and ElasticSearch
elif
- Solution: Number guessing game in Python
ELK
- Install the ELK stack on CentOS using Ansible
else
- Find the first element in Python list that matches some condition
- Solution: Number guessing game in Python
- Solution: Number guessing game in Ruby
- for-else in Python indicating "value not found"
elsif
- Solution: Number guessing game in Ruby
emailext
- Jenkins Pipeline: Send e-mail notifications
emoji
- Show Emoji in Python code
END
- Python atexit exit handle - like the END block of Perl
enumerate
- read_csv file using Pandas skipping rows based on content
ENV
- Ruby ENV - access the environment variables
Environment
- Skeleton: A minimal example generating HTML with Python Jinja
environment
- Jenkins Pipeline - set and use environment variables
error
- Logging in JavaScript applications
error code
- Error 718: Missing files cannot be found.
errorhandler
- Python Flask: catch and handle exceptions in routes using errorhandler
evaluate
- Groovy: evaluate code in another file
Exception
- Groovy Exception handling (try, catch, Exception)
- Groovy throw (raise) exception
- Python Flask: catch and handle exceptions in routes using errorhandler
- Python timeout on a function call or any code-snippet.
- Python: print stack trace after catching exception
exec
- Python create partial functions in runtime
exercise
- Exercise: Calculate the area of a rectangular
- Solution: rectangle in Ruby (CLI and STDIN = Standard IO)
exercises
- Download a web page
- Exercise: Add numbers taken from a CSV file
- Exercise: Analyze Apache log file - count every host
- Exercise: Analyze Apache log file - count localhost
- Exercise: Compare the Wikipedia translations
- Exercise: Count words in a file
- Exercise: Create calculator
- Exercise: Echo Web application
- Exercise: Hello World
- Exercise: Hello World for Web applications
- Exercise: Implement the wc command of Linux/Unix (word count)
- Exercise: Improve Number guessing game
- Exercise: Improve the color selector
- Exercise: Match Roman numbers
- Exercise: Match hexa, octal, binary numbers
- Exercise: Match numbers with regex
- Exercise: Number guessing game
- Exercise: Parse HTTP GET parameters
- Exercise: Regexes part 1
- Exercise: Send HTML e-mail
- Exercise: Send e-mail with attachment
- Exercise: Send plain text e-mail
- Exercise: Sort based on secondary condition
- Exercise: Split file path using regex
- Exercise: Sum of numbers in a file
- Exercise: add more statistics
- Exercise: color selector
- Exercise: count digits
- Exercise: display unique rows of a file
- Exercise: parse hours log file and create time report
- Exercise: parse variable width fields
- Exercise: sort SNMP numbers
- Exercise: sort mixed string
- Exercise: sort scores
- Exercise: write report to file
- Flight ticket vendor for low-cost flights
- MasterMind
- Personal Bookmarks
- Programming Exercises
- RSS/Atom to e-mail
- Solution: Number guessing game in Python
- Solution: Number guessing game in Ruby
- TODO list
- URL Shortener
Exercises
- Create a Personal Microblog
- Static Site Generator
exit
- Groovy exit - System.exit - early exit from Groovy script
- How to exit a Node.js script
- Python: Capture standard output, standard error, and the exit code of a subprocess
Expect
- What is Expect
Face recognition
- CMOS #17: Moyinoluwa Adeyemi creating Android Watch in Yorùbá
fail-fast
- Python helper: Let all CI jobs fail separately
FALSE
- Groovy: import standard libraries
File
- Count digits in Groovy
- Groovy file and directory attributes
- Groovy: listing the content of a directory, traversing a directory tree
- Groovy: read CSV file
- Groovy: reading and writing files - appending content
- Groovy: sum of numbers
- Groovy: temporary file with autodelete
- How to write to file in Ruby
- Open file and read content in Ruby
file
- Ansible playbook remove directory
- Ansible playbook remove file
File::LOCK_NB
- Run only one instance of a Ruby program at the same time - self locking
Filebeat
- Install the ELK stack on CentOS using Ansible
filedialog
- Python: How to get input file on Windows
fileHandler
- Logging in Python
files
- Merge only one commit from a Pull-request on GitHub
- Record editor in Angular for fixed list of values
FileSystemLoader
- Skeleton: A minimal example generating HTML with Python Jinja
filter
- AngularJS: filter table created with ng-repeat
- Filters in AngularJS
- Find the first element in Python list that matches some condition
- read_csv file using Pandas skipping rows based on content
find
- Counter in MongoDB client
- Find first element in an array matching a condition in JavaScript
find -type f
- Show number of files in a directory tree using Shell
- Show number of files in several directory trees using Shell
find_one_and_update
- Counter with Python and MongoDB
findAndModify
- Counter in MongoDB client
Firefox
- Open JavaScript Console
Fixnum
- Basic data structures in Ruby (Scalar, Array, Hash)
flake8
- Getting started with Flake8
- Static code analysis for Python code - PEP8, FLAKE8, pytest
flask
- Flask in Docker - development
- How to return a 404 error in Flask application
- Python Flask: serve static files: (CSS, JavaScript, images, etc.)
Flask
- Deploying Python Flask using uWSGI and Nginx on Ubuntu 14.04
- Flask Tutorial
- Flask counter with SQLite, SQLAlchemy, pytest
- Flask counter with SQLite, SQLAlchemy, pytest - database migration with yoyo
- Flask routes - URL mapping - views
- Flask: display elapsed time
- Hello World with Flask and Python
- Python Flask: catch and handle exceptions in routes using errorhandler
- Python Flask: execute code after every request
- Python Flask: execute code before every request
- Python Flask: execute code once before first request
- Python Flask: logging
- Shopping list
- Upload multiple files with HTML and Flask
flask.render_template
- Using templates in Flask
float
- Value might be None in Python - checking with mypy
Float
- Basic data structures in Ruby (Scalar, Array, Hash)
flock
- Run only one instance of a Ruby program at the same time - self locking
FLOSS Weekly
- CMOS #12: Randal Schwartz the host of FLOSS Weekly
for
- Callback or Iterator in Python
- Count digits in Groovy
- Creating an Iterator in Python
- Find the first element in Python list that matches some condition
- For loop in Ruby (iterating over array elements)
- Groovy: Lists
- Groovy: for loop - break - continue
- Python: Iterate over list of tuples
- Show number of files in several directory trees using Shell
- for-else in Python indicating "value not found"
force
- git branching strategy for when you cannot use the --force
fork
- Parallel processing in Python using fork
- Python fork and wait or waitpid
form
- Echo with Flask and Python
format
- How to commafy a number? (How to print number with commas as thousands separators using Python?)
Formatter
- Logging in Python
free
- Getting Started with Ansible managing CentOS on Digital Ocean
fs
- Reading a file with Node.js - blocking and non-blocking
fs.stat
- List content of a directory with Node.js
fs.Stats
- How to get system information of a file or directory in Node.js (stat)
func
- Skeleton Go program - error messages in Go
function
- Functions in JavaScript
- Functions in Linux shell (bash)
- JavaScript function that accepts any number of arguments
g
- Flask: display elapsed time
gcloud
- gcloud - the command line tool for Google Cloud Platform
GCP
- Google Cloud shutdown script
GET
- Echo with Flask and Python
- HTTP Client request in Node.js (GET request and data from POST request)
- Send HTTP Requests in Python
get
- Groovy: relative path
getAttribute
- Custom HTML Attributes
- TODO in HTML5 and plain JavaScript
getBuildCauses
- Jenkins pipeline: get current user
- Jenkins pipelines: Arbitrary code execution in the shell
getClass
- Groovy get the list of keys of a map as an ArrayList
- Groovy iterate over map keys
- Groovy path to current executable script
- Groovy: Determine type of an object
getElementById
- Input Output in plain JavaScript
- JavaScript Hello World - changing the DOM with getElementById and innerHTML
- Mobile swipe left, swipe right of HTML pages using vanilla JavaScript
- Multiple counters with plain JavaScript and local storage
- On-load counter with JavaScript and local storage
- TODO in HTML5 and plain JavaScript
getElementsByClassName
- TODO in HTML5 and plain JavaScript
getElementsByTagName
- Custom HTML Attributes
getItem
- Multiple counters with plain JavaScript and local storage
- On-load counter with JavaScript and local storage
- TODO in HTML5 and plain JavaScript
getLabels
- Jenkins pipeline: List agents by name or by label
getLogger
- Logging in Python
getmtime
- Show file modification time in Python
getopt
- Bash: parsing command line arguments with getopt
getParent
- Groovy: relative path
getPreviousBuild
- Jenkins pipeline: Get previous build status - getPreviousBuild
gets
- Open file and read content in Ruby
- Solution: Number guessing game in Ruby
- Solution: rectangle in Ruby (CLI and STDIN = Standard IO)
getText
- Groovy: read CSV file
- Groovy: reading and writing files - appending content
Git
- Books
- Getting started with Git and GitHub (with Olga Tapinova)
- Services provided by Gabor Szabo at Code Maven
- Why Git is better than Subversion for Open Source Projects
- Why to have Public Version Control System for Open Source Projects?
git
- Adding first file to your git repository
- Bitbucket
- Creating a local git repository
- Download and install Git on MS Windows
- Download and install git
- Enforce fast forward as merge strategy in Git
- Enforcing commit message format in Git - on the client side
- Exercise git session 1
- Filtering GitHub pull requests waiting for me
- Getting help for git
- Getting started with Git on MS Windows
- Git
- Git Workflow for teams using a single remote repository
- Git file status
- Git on Windows
- Git workflow for individuals
- Git: Check for conflicts before merge
- Jenkins Pipeline: git checkout using reference to speed up cloning large repositories
- Per project (per directory) private ssh keys for git
- Recording changes in Git
- Start Git with a local repository
- The difference between annotated and simple git tags
- Why use a version control system (VCS)?
- git branching strategy for when you cannot use the --force
- git config
- git stash - temporary saving changes
Github
- CI For the Log::Any Perl module
- GitHub Actions and Workflows
GitHub
- A JavaScript bug and GitHub Workflow CI for the four-pillars Ruby gem
- Add GitHub Action CI to the Net-Async-Redis-XS Perl module
- Add GitHub Actions to the scale_rb Ruby project
- Add GitHub actions to the xhash project written in Go
- Adding CI to Perl::Efl - sometimes you need to do some extra work
- Automated tests for sssimp, a simple static site generator in Python
- Be pragmatic setting up CI for the RDF::KV
- Books
- CI for Data::Alias in Perl - including threaded perl
- CI for Mojo-UserAgent-Cached and Plack-Middleware-Greylist
- CI for Plack-Middleware-LogAny
- CI for Win32-Wlan Perl module
- CI for a Python project of the National Institute of Standards and Technology
- CI for farmworld, a Python package - a failed attempt
- CI for multi_string_replace Ruby Gem
- CI for perl5-MIME-Types
- CI for sdk-py Python packages
- CI for the draftjs_html Ruby Gem
- CI for wp2txt Ruby project
- CI using timescaledb a PostgreSQL based time series database
- Create an account on GitHub.
- Failing CI to help fixing filesystem issues in a Python package
- Filtering GitHub pull requests waiting for me
- Finding an Open Source Python project to contribute to
- Fix URL to repository of the glob-linters Python project
- Full gas in neutral - CI for prepper
- Getting Started with GitHub Pages: with HTML and with Jekyll
- Getting started with Git and GitHub (with Olga Tapinova)
- GitHub Action CI for wsblib Python
- GitHub Actions
- GitHub Actions CI for the pcr_optimizer Python package
- GitHub Actions CI for the rdf-kv Ruby Gem
- GitHub Actions for Colombian Spanish. In Python
- GitHub Workflow for ruby-request-builder
- Go Course: Getting started with the Golang course
- Go Course: Go and Open Source
- Go Course: Install the Go compiler
- Go Course: Why use Go? The features of Golang
- How to send a Pull-Request on GitHub - fixing the content of the Code-Maven site
- Introduce Continuous Integration (CI) to the starpy Python project
- JavaScript and jQuery on GitHub pages
- Make it easy to setup CI environment - python (once-utils)
- Moving from Travis-CI to GitHub Actions for Marpa::R2
- Python helper: Let all CI jobs fail separately
- Python: Pydigger add author field to a PyPI package
- Reporting issues on GitHub (for Perl Advent)
- Running external programs with Python (system and subprocess)
- Test and CI for MoreBeautifulPython
GitHub Actions
- COVID 19 charts by DungeonTiger
- Introduce Continuous Integration (CI) to the starpy Python project
GitLab
- Build Docker image in GitLab CI/CD pipeline
- Exploring GitLab CI
- GitLab CI job building a Docker image
- Testing a Docker image created by GitLab CI
GitSCM
- Jenkins Pipeline: git checkout using reference to speed up cloning large repositories
go
- CMOS #4: Tom Hudson - gron for making JSON greppable
- Single counter with simple text file using Go
- Skeleton Go program - error messages in Go
Go
- Add GitHub actions to the xhash project written in Go
Golang
- Go Course: Getting started with the Golang course
- Go Course: Go and Open Source
- Go Course: Install the Go compiler
- Go Course: Why use Go? The features of Golang
Google
- Download charts from Google Forms on Ubuntu Linux
- How to sync Google calendar with an external calendar?
GPU
- Showing speed improvement using a GPU with CUDA and Python with numpy on Nvidia Quadro 2000D
GraphQL
- CMOS #6: Tally Barak on GraphQL
grep
- Compare the speed of grep with Python regexes
gron
- CMOS #4: Tom Hudson - gron for making JSON greppable
Groovy
- Books
- Groovy
- Groovy - Regular Expressions - regexes
- Groovy code reuse
- Groovy functions
- Printing Unicode characters from Groovy
GroovyShell
- Groovy: import and use functions from another file
gsutil
- gcloud - the command line tool for Google Cloud Platform
GUI
- X-forwarding to run GUI program in Vagrant box
h1
- HTML basics
Hackathon
- CMOS #15: Prosper Otemuyiwa - Laravel
handle_starttag
- Extract HTML links using Python HTML Parser
- Print HTML links using Python HTML Parser
Handlebars
- Handlebars Tutorial
- Handlebars with (slightly) complex data
- Introduction to Handlebars, the JavaScript templating system
Handlebars.compile
- Handlebars with dynamically loaded and cached template
Handlebars.registerHelper
- Handlebars conditional
- Handlebars helpers
Hash
- Basic data structures in Ruby (Scalar, Array, Hash)
- Raku Interactive Shell - values in $ variables
header
- Send HTTP Requests in Python
HTML
- CMOS #9: Ire Aderinokun - Khaled Bot, Can I Use Embed, Formhack
- Custom HTML Attributes
- HTML basics
- Hello World in plain HTML
- Upload multiple files with HTML and Flask
HTML5
- HTML 5 Skeleton
HTMLParser
- Extract HTML links using Python HTML Parser
- Print HTML links using Python HTML Parser
- Python Weekly statistics (using urllib2, HTMLParser and pickle)
htmlspecialchars
- Accept GET and POST parameters in PHP - use htmlspecialchars
htop
- What ports are open on Linux - which application uses which port
http
- Building a web client (a crawler) using Node.js
- Getting started with Node.js
- HTTP Client request in Node.js (GET request and data from POST request)
http.get
- Building a web client (a crawler) using Node.js
http.server
- Static web server in Python
httpbin
- The importance of using HTTPS
HTTPServer
- Static web server in Python
hypothesis
- CMOS #10: Michael Kennedy - Talk Python To Me
id_rsa
- Generate and deploy ssh private public keypair (ssh-keygen, ssh-copy-id)
identify
- Resize images on the command line using image magick
IE
- Open JavaScript Console
if
- Solution: Number guessing game in Python
- Solution: Number guessing game in Ruby
if_eq
- Handlebars conditional
iff
- Handlebars conditional
Image
- Create images with Python PIL and Pillow and write text on them
ImageDraw
- Create images with Python PIL and Pillow and write text on them
ImageFont
- Create images with Python PIL and Pillow and write text on them
ImageMagick
- Resize images on the command line using image magick
import
- Groovy: read CSV file
- Python: avoid importing everything using a star: *
imread
- Convert Python numpy array to in memory binary image using PIL or OpenCV
imwrite
- Convert Python numpy array to in memory binary image using PIL or OpenCV
in
- Count digits in Groovy
index
- Analyze Apache log file - count localhost in Ruby
- Count web server hits using Ruby
India
- CMOS #11: Mohammad S. Anwar - Contributing to CPAN every single day
info
- Logging in JavaScript applications
innerHTML
- JavaScript Hello World - changing the DOM with getElementById and innerHTML
input
- Jenkins pipeline: interactive input during process
- Never use input() in Python 2
insert
- Counter in MongoDB client
instance
- Jenkins pipeline: List agents by name or by label
instanceof
- Groovy: Determine type of an object
Int
- Raku Interactive Shell - values in $ variables
int
- Groovy value types
- Python: Sum of numbers in a file
- Solution: Number guessing game in Python
Integer
- Groovy casting
- Groovy functions
- Groovy value types
interact
- Switch to interactive mode from a Python script
interview
- CMOS #10: Michael Kennedy - Talk Python To Me
- CMOS #11: Mohammad S. Anwar - Contributing to CPAN every single day
- CMOS #12: Randal Schwartz the host of FLOSS Weekly
- CMOS #13: Trung Đinh Quang on GitHub Explorer - a progressive web app
- CMOS #14: Johnny Ray Austin - Mo - Django - VueJS
- CMOS #15: Prosper Otemuyiwa - Laravel
- CMOS #16: Jan Henning Thorsen and Marcus Ramberg about Convos, the web-based IRC client
- CMOS #17: Moyinoluwa Adeyemi creating Android Watch in Yorùbá
- CMOS #18: Timi Ajiboye on Client Manager, Resque, Friendly ID and other Rails gems
- CMOS #19: Job van Achterberg - Inclusive design
- CMOS #1: Jason Crome on Perl Dancer 2
- CMOS #2: Sawyer X on Perl 5
- CMOS #3: Joel Berger on Mojolicious
- CMOS #4: Tom Hudson - gron for making JSON greppable
- CMOS #5 Lucy Greco - DictationBridge - helping the visually impaired
- CMOS #6: Tally Barak on GraphQL
- CMOS #7: Obinwanne Hill on RestiveJS
- CMOS #8: Lynn 'Cyrin' Conway on Bundler, RubyGems and Ruby Together
- CMOS #9: Ire Aderinokun - Khaled Bot, Can I Use Embed, Formhack
- Job search
- Job search - Distantjob with Leticia Naranjo
- Perl Career with Pete Sergeant
- What does an SRE do at Adobe? - Our guest is Rachael Bates
invitation
- Invitation
IPv6. IPv4
- Serving web pages over IPv6 and IPv4 and verifying it
IRC
- CMOS #16: Jan Henning Thorsen and Marcus Ramberg about Convos, the web-based IRC client
isDirectory
- Groovy file and directory attributes
- How to get system information of a file or directory in Node.js (stat)
isFile
- Groovy file and directory attributes
- How to get system information of a file or directory in Node.js (stat)
isinstance
- Handle different types of parameters in the same function in Python
Israel
- CMOS #2: Sawyer X on Perl 5
- CMOS #6: Tally Barak on GraphQL
items
- How to insert a dictionary in another dictionary in Python (How to merge two dictionaries)
iterdir
- Listing first elements of a huge directory using Python
Java
- Calling Java from Python
- Java
java
- Calculator in Java
- Hello World in Java
javac
- Calculator in Java
- Hello World in Java
JavaScript
- CMOS #13: Trung Đinh Quang on GitHub Explorer - a progressive web app
- CMOS #9: Ire Aderinokun - Khaled Bot, Can I Use Embed, Formhack
- Counter Example: Improved Vanilla JavaScript
- Counter Example: Vanilla JavaScript
- Custom HTML Attributes
- JavaScript
- JavaScript and jQuery on GitHub pages
- Show ads to visitors based on referrer using JavaScript only
Javascript
- Registry of 3rd party libraries / packages / modules
Jekyll
- Getting Started with GitHub Pages: with HTML and with Jekyll
Jenkins
- Books
- How to set the job number and description for a Jenkinsfile in a Jenkins Pipeline?
- Jenkins
- Jenkins Pipeline - set and use environment variables
- Jenkins Pipeline BuildUser plugin
- Jenkins Pipeline parameters
- Jenkins Pipeline printing Unicode characters
- Jenkins Pipeline: Collect exit code from external commands
- Jenkins Pipeline: git checkout using reference to speed up cloning large repositories
- Jenkins pipeline: Get previous build status - getPreviousBuild
- Jenkins pipeline: List agents by name or by label
- Jenkins pipeline: add badges
- Jenkins pipeline: interactive input during process
- Jenkins pipeline: parallel stages
- Jenkins report the name of the stage that failed
- Jenkins triggers: Periodic polling
- Jenkins: separate jobs for development and production
- Running Jenkins in Docker
- Services provided by Gabor Szabo at Code Maven
- Vagrant for Jenkins on Ubuntu
jenkins-cli
- Jenkins CLI: create node
jinja2
- Skeleton: A minimal example generating HTML with Python Jinja
jmeter
- JMeter
jobs
- Backend Python developer - Junior Python programmer
- DevOps Engineer
- How to get your first job in hi-tech as a junior ...?
- How to use LinkedIn to find a job and to let a job find you in Hi-Tech
- Job search
- Job search - Distantjob with Leticia Naranjo
- Test Automaton Engineer
join
- Groovy: join elements of an array
jpype
- Calling Java from Python
jq
- jq
jQuery
- JavaScript and jQuery on GitHub pages
- jQuery
jQuery.get
- Handlebars with dynamically loaded and cached template
JSLint
- Improving JavaScript code with JSLint
json
- How to serialize a datetime object as JSON using Python?
- jq
JSON
- CMOS #4: Tom Hudson - gron for making JSON greppable
- Groovy: JSON - reading and writing
- JSON
- Pretty print JSON with beautifier: How to make a JSON readable
JSON.parse
- Ajax request for JSON data with vanilla JavaScript
- Showing objects in the JavaScript console without going mad
- TODO in HTML5 and plain JavaScript
JSON.stringify
- Showing objects in the JavaScript console without going mad
- TODO in HTML5 and plain JavaScript
JsonSlurper
- Groovy: JSON - reading and writing
Junit
- Parsing test results from JUnit XML files with Python
key
- Groovy map (dictionary, hash, associative array)
keySet
- Groovy get the list of keys of a map as an ArrayList
- Groovy iterate over map keys
- Groovy map (dictionary, hash, associative array)
Kibana
- Install the ELK stack on CentOS using Ansible
lambda
- Find the first element in Python list that matches some condition
Laravel
- CMOS #15: Prosper Otemuyiwa - Laravel
lc
- How to convert a string to UPPERCASE or lowercase in Ruby?
length
- Getting started with Ruby
- Groovy string length
levenshtein
- Caching results to speed up process in Python
LibreLingo
- LibreLingo - adding a Cancel button
LineNumberReader
- Groovy: sum of numbers
LinkedIn
- Backup your LinkedIN data!
- How to use LinkedIn to find a job and to let a job find you in Hi-Tech
- Job search on LinkedIn
LinkedList
- Groovy: Lists
Linux
- Exercise: Linux as a Virtual Environment - install + nginx
- Installing Ubuntu Linux in VirtualBox on top of Windows, Mac, or another Linux system
- Linux
- Linux TAB completion of ls
- Setup 2 Ubuntu boxes in VirtualBox to communicate with each other
- Vagrant and VirtualBox on Ubuntu 17.10 and CentOS 7
- VirtualBox host-only network - ssh to remote machine
list
- Raku Interactive Shell - values in $ variables
List
- Groovy: Lists
- Handle different types of parameters in the same function in Python
- Raku Interactive Shell - values in $ variables
Live
- Live pair programming events
live
- DevOps work - setting up CI and Docker for the course management project with Thomas Klausner
- Developing an application for organising online self knowledge workshops
- Developing an application for organising online self knowledge workshops - Part 1
- Developing an application for organising online self knowledge workshops - part 10
- Developing an application for organising online self knowledge workshops - part 2
- Developing an application for organising online self knowledge workshops - part 3
- Developing an application for organising online self knowledge workshops - part 4
- Developing an application for organising online self knowledge workshops - part 5
- Developing an application for organising online self knowledge workshops - part 6
- Developing an application for organising online self knowledge workshops - part 7
- Developing an application for organising online self knowledge workshops - part 8
- Developing an application for organising online self knowledge workshops - part 9
- Exploring GitLab CI
- Web Application development in Laravel with Natalie O'Brien
- Working on PyDigger
- Working on PyDigger with Upasana Shukla
- Working on PyDigger with Upasana Shukla
- Working on PyDigger with Upasana Shukla - part 3
- Working on PyDigger with Upasana Shukla - part 4
- Working on the workout-app with Rachel Normand
- Working on the workout-app with Rachel Normand - part 1 ReactJS
- Working on the workout-app with Rachel Normand - part 2 - Python Flask, Pytest
LOCAL
- Run code locally with Rexify
locals
- Python create partial functions in runtime
localStorage
- Multiple counters with plain JavaScript and local storage
- On-load counter with JavaScript and local storage
- TODO in HTML5 and plain JavaScript
LOCK_EX
- Run only one instance of a Ruby program at the same time - self locking
log
- Logging in JavaScript applications
logger
- Python Flask: logging
logging
- Logging in Python
- Python Flask: logging
- Python: logging in a library even before enabling logging
- Simple logging in Python
Logstash
- Install the ELK stack on CentOS using Ansible
lowercase
- How to convert a string to UPPERCASE or lowercase in Ruby?
ls
- Linux TAB completion of ls
- Nano the simplest editor for Linux
ls -1
- Show number of files in a directory tree using Shell
- Show number of files in several directory trees using Shell
Mac
- Display notification from the Mac command line
mailgun
- Bind9 DNS records for SPF1 and DKIM1 for a domain used by mailgun
main
- Skeleton Go program - error messages in Go
manager
- Jenkins Pipeline: Add some text to the job using manager.addShortText
- Jenkins pipeline: add badges
map
- Groovy map (dictionary, hash, associative array)
- Python: Sum of numbers in a file
- Solution: Sum of numbers in a file implemented in Ruby
Markdown
- Getting Started with GitHub Pages: with HTML and with Jekyll
- JavaScript and jQuery on GitHub pages
master
- Jenkins Pipeline - Hello World
Materialize
- Materialize CSS: Side-nav with Vanilla JavaScript
- Materialize CSS: Side-nav with Vanilla JavaScript on both sides
- Materialize CSS: Side-nav with hierarchy
Math.random
- Groovy: Random numbers, random selection from list of values
Mechanize
- Adventure in crawling and scraping the World
Meetup
- Free Meetup Spaces in Israel
Meteor
- CMOS #6: Tally Barak on GraphQL
Metricbeat
- Install the ELK stack on CentOS using Ansible
Microblog
- Create a Personal Microblog
MissingPropertyException
- Groovy: Undeclared variable - runtime exception - groovy.lang.MissingPropertyException
mktemp
- Create temporary directory on Linux with Bash using mktemp
mock
- Fight or Flight? - dealing with real world applications in Python
mocking
- Mocking input and output for Python testing
Mojolicious
- CMOS #3: Joel Berger on Mojolicious
MongoDB
- Counter in MongoDB client
monitoring
- Datadog
- Server Monitoring
msg
- Ansible playbook: print debugging statement
mypy
- Handle different types of parameters in the same function in Python
- Type checking of Python code using mypy
- Value might be None in Python - checking with mypy
NaN
- JavaScript function that accepts any number of arguments
nano
- Nano the simplest editor for Linux
netstat
- What ports are open on Linux - which application uses which port
new
- Groovy classes
newReader
- Groovy: reading and writing files - appending content
- Groovy: sum of numbers
next
- Creating an Iterator in Python
- Find the first element in Python list that matches some condition
- Groovy: Random numbers, random selection from list of values
nextInt
- Groovy: Number guessing game
- Groovy: Random numbers, random selection from list of values
ng-app
- A simple calculator in AngularJS
- Getting started with AngularJS
- Hello World with AngularJS module and controller
- Simple in-memory counter with AngularJS
ng-change
- AngularJS: filter table created with ng-repeat
ng-click
- Automatic counter using AngularJS
- Simple in-memory counter with AngularJS
- Simple pages or tabs using AngularJS
- TODO in AngularJS
ng-controller
- A simple calculator in AngularJS
- Add numbers with AngularJS
- Hello World with AngularJS module and controller
ng-include
- Almost infinite recursive template in AngularJS for representing tree structures
ng-init
- Simple in-memory counter with AngularJS
- Simple pages or tabs using AngularJS
ng-model
- A simple calculator in AngularJS
- Add numbers with AngularJS
- AngularJS - first binding
- AngularJS: filter table created with ng-repeat
ng-repeat
- Almost infinite recursive template in AngularJS for representing tree structures
- AngularJS: filter table created with ng-repeat
- Filters in AngularJS
- TODO in AngularJS
ng-show
- Simple pages or tabs using AngularJS
ng-view
- Angular example: simple router
nginx
- Serving web pages over IPv6 and IPv4 and verifying it
Nginx
- Deploying Python Flask using uWSGI and Nginx on Ubuntu 14.04
- Deploying Python with uWSGI and Nginx on Ubuntu 13.10
- Exercise: Linux as a Virtual Environment - install + nginx
ngRouter
- Angular example: simple router
Nigeria
- CMOS #15: Prosper Otemuyiwa - Laravel
- CMOS #17: Moyinoluwa Adeyemi creating Android Watch in Yorùbá
- CMOS #18: Timi Ajiboye on Client Manager, Resque, Friendly ID and other Rails gems
- CMOS #7: Obinwanne Hill on RestiveJS
- CMOS #9: Ire Aderinokun - Khaled Bot, Can I Use Embed, Formhack
no_ssh
- Run code locally with Rexify
node
- Jenkins Pipeline - Hello World
Node.js
- JavaScript module to run both in a browser and in Node.js
- Node.js
None
- Value might be None in Python - checking with mypy
Norway
- CMOS #16: Jan Henning Thorsen and Marcus Ramberg about Convos, the web-based IRC client
notify-send
- Add notification to my command line on Ubuntu Linux
numba
- Showing speed improvement using a GPU with CUDA and Python with numpy on Nvidia Quadro 2000D
numpy
- Showing speed improvement using a GPU with CUDA and Python with numpy on Nvidia Quadro 2000D
Numpy
- Applied Imbalanced Data Solutions
- Convert Python numpy array to in memory binary image using PIL or OpenCV
Nvidia
- Showing speed improvement using a GPU with CUDA and Python with numpy on Nvidia Quadro 2000D
onbeforeunload
- Prevent leaving the page using plain JavaScript
open
- Analyze Apache log file - count localhost in Ruby
- Command-line counter in Python
- Count digits in Ruby
- Count web server hits using Ruby
- Open file and read content in Ruby
- Python: Sum of numbers in a file
- Run only one instance of a Ruby program at the same time - self locking
- Solution: Sum of numbers in a file implemented in Ruby
open source
- Project Management, Quality Assurance, and Test Automation in Open Source Projects
Open Source
- Contributing to Open Source Software: VS Code (Visual Studio Code)
- How to contribute to Meta::CPAN
- How to contribute to an Open Source project?
- Live web sites with editable Open Source source code
- Open Source Companies
- Open Source Projects
- Open Source Web application frameworks
- Ready-made downloadable and deployable Open Source web applications
open source tools
- CMOS #19: Job van Achterberg - Inclusive design
open-uri
- Download an HTML page using Ruby
OpenCV
- Convert Python numpy array to in memory binary image using PIL or OpenCV
Opera
- Open JavaScript Console
Optional
- Value might be None in Python - checking with mypy
os
- Traversing directory tree using walk in Python - skipping .git directory
OS
- OS
os.listdir
- Listing a directory using Python
os.path.exists
- Command-line counter in Python
os.path.getsize
- Listing a directory using Python
os.path.isdir
- Listing a directory using Python
os.path.isfile
- Listing a directory using Python
os.path.join
- Listing a directory using Python
os.stat
- Listing a directory using Python
osascript
- Display notification from the Mac command line
p!
- Crystal part 2 - puts, print, p!
package
- Skeleton Go program - error messages in Go
PackageLoader
- Skeleton: A minimal example generating HTML with Python Jinja
packages
- Testing 3rd party packages on end-user's machine during installation
Pair
- Raku Interactive Shell - values in $ variables
Pandas
- Applied Imbalanced Data Solutions
- Basic modification of Biological data frames using Pandas by Shelley Klompus
- read_csv file using Pandas skipping rows based on content
parallel
- Jenkins pipeline: parallel stages
parameters
- Jenkins Pipeline parameters
- Jenkins pipelines: Arbitrary code execution in the shell
parseCSV
- Groovy: read CSV file
parseText
- Groovy: JSON - reading and writing
partial
- Python create partial functions in runtime
passlib
- CMOS #10: Michael Kennedy - Talk Python To Me
Path
- Groovy: relative path
path
- Groovy path to current executable script
pathlib
- Listing first elements of a huge directory using Python
Paths
- Groovy: relative path
pause
- Waiting with Ansible, pausing a Playbook
PBS
- Managing jobs in a PBS cluster using Python
PDF
- Add image to existing PDF file in Python using reportlab
- Create PDF file with image in Python using reportlab
- Create multipage PDF file in Python using reportlab
- Creating PDF files using Python and reportlab
Perl
- Add GitHub Action CI to the Net-Async-Redis-XS Perl module
- CI for Win32-Wlan Perl module
- CMOS #11: Mohammad S. Anwar - Contributing to CPAN every single day
- CMOS #12: Randal Schwartz the host of FLOSS Weekly
- CMOS #1: Jason Crome on Perl Dancer 2
- CMOS #2: Sawyer X on Perl 5
- CMOS #3: Joel Berger on Mojolicious
- How to contribute to Meta::CPAN
- Installing Perl and CPAN modules using Ansible
- Pretty print JSON with beautifier: How to make a JSON readable
- Registry of 3rd party libraries / packages / modules
- Why to have Public Version Control System for Open Source Projects?
Perl 5
- CMOS #2: Sawyer X on Perl 5
pg_database
- PostgreSQL
PGPASSWORD
- PostgreSQL
PHP
- PHP
- PHP development environment on CentOS
- Setup local development environment and run tests of PHP Twig
pickle
- Python Weekly statistics (using urllib2, HTMLParser and pickle)
PIL
- Convert Python numpy array to in memory binary image using PIL or OpenCV
- Create images with Python PIL and Pillow and write text on them
- Crop images using Python PIL - Pillow
- Python PIL - Pillow tutorial and examples
- Python: get size of image using PIL or Pillow
- Resize images using Python PIL Pillow
- Write text on existing image using Python PIL - Pillow
Pillow
- Create images with Python PIL and Pillow and write text on them
- Crop images using Python PIL - Pillow
- Python PIL - Pillow tutorial and examples
- Python: get size of image using PIL or Pillow
- Resize images using Python PIL Pillow
- Write text on existing image using Python PIL - Pillow
ping
- Getting Started with Ansible managing CentOS on Digital Ocean
- Serving web pages over IPv6 and IPv4 and verifying it
- Setup 2 Ubuntu boxes in VirtualBox to communicate with each other
ping4
- Serving web pages over IPv6 and IPv4 and verifying it
ping6
- Serving web pages over IPv6 and IPv4 and verifying it
pip
- Ansible
- Installing Ansible
- Python package dependency management - pip freeze - requirements.txt and constraints.txt
Pipeline
- Limit Bitbucket pipelines to specific branches
pipeline
- Jenkins Pipeline - Hello World
PlayWright
- Implementing a feature in the Typescript cucumber-playwright package with Tally Barak
podcast
- CMOS #10: Michael Kennedy - Talk Python To Me
- CMOS #11: Mohammad S. Anwar - Contributing to CPAN every single day
- CMOS #12: Randal Schwartz the host of FLOSS Weekly
- CMOS #13: Trung Đinh Quang on GitHub Explorer - a progressive web app
- CMOS #14: Johnny Ray Austin - Mo - Django - VueJS
- CMOS #15: Prosper Otemuyiwa - Laravel
- CMOS #16: Jan Henning Thorsen and Marcus Ramberg about Convos, the web-based IRC client
- CMOS #17: Moyinoluwa Adeyemi creating Android Watch in Yorùbá
- CMOS #18: Timi Ajiboye on Client Manager, Resque, Friendly ID and other Rails gems
- CMOS #19: Job van Achterberg - Inclusive design
- CMOS #1: Jason Crome on Perl Dancer 2
- CMOS #2: Sawyer X on Perl 5
- CMOS #3: Joel Berger on Mojolicious
- CMOS #4: Tom Hudson - gron for making JSON greppable
- CMOS #5 Lucy Greco - DictationBridge - helping the visually impaired
- CMOS #6: Tally Barak on GraphQL
- CMOS #7: Obinwanne Hill on RestiveJS
- CMOS #8: Lynn 'Cyrin' Conway on Bundler, RubyGems and Ruby Together
- CMOS #9: Ire Aderinokun - Khaled Bot, Can I Use Embed, Formhack
- CMOS - Code-Maven Open Source podcast
pollSCM
- Jenkins triggers: Periodic polling
pop
- Arrays in Ruby
- Groovy pop push
POST
- Echo with Flask and Python
- HTTP Client request in Node.js (GET request and data from POST request)
PostgrSQL
- Python and PostgreSQL
pp
- Pretty printing complex data structures in Ruby - like Data::Dumper in Perl
print
- Crystal part 2 - puts, print, p!
- Getting started with Ruby
- Hello World in Groovy
- Solution: Number guessing game in Ruby
printenv
- Jenkins Pipeline - set and use environment variables
printf
- Groovy: Formatted printing with printf and sprintf
println
- Hello World in Groovy
process
- How to exit a Node.js script
- argv - raw command line arguments in Node.js
progressive
- CMOS #13: Trung Đinh Quang on GitHub Explorer - a progressive web app
projectName
- Jenkins: separate jobs for development and production
projects
- Download a web page
- Exercise: Add numbers taken from a CSV file
- Exercise: Analyze Apache log file - count every host
- Exercise: Analyze Apache log file - count localhost
- Exercise: Compare the Wikipedia translations
- Exercise: Count words in a file
- Exercise: Create calculator
- Exercise: Echo Web application
- Exercise: Hello World
- Exercise: Hello World for Web applications
- Exercise: Implement the wc command of Linux/Unix (word count)
- Exercise: Improve Number guessing game
- Exercise: Improve the color selector
- Exercise: Match Roman numbers
- Exercise: Match hexa, octal, binary numbers
- Exercise: Match numbers with regex
- Exercise: Number guessing game
- Exercise: Parse HTTP GET parameters
- Exercise: Regexes part 1
- Exercise: Send HTML e-mail
- Exercise: Send e-mail with attachment
- Exercise: Send plain text e-mail
- Exercise: Sort based on secondary condition
- Exercise: Split file path using regex
- Exercise: Sum of numbers in a file
- Exercise: add more statistics
- Exercise: color selector
- Exercise: count digits
- Exercise: display unique rows of a file
- Exercise: parse hours log file and create time report
- Exercise: parse variable width fields
- Exercise: sort SNMP numbers
- Exercise: sort mixed string
- Exercise: sort scores
- Exercise: write report to file
- Flight ticket vendor for low-cost flights
- Ideas for TED
- Personal Bookmarks
- Programming Exercises
- RSS/Atom to e-mail
- TODO list
- URL Shortener
prompt
- JavaScript input with prompt and confirm
properties
- Groovy System properties
ps
- What ports are open on Linux - which application uses which port
- ps does not show name of the shell script only -bash or bash - Linux
PS1
- Bash prompt showing git status
psql
- PostgreSQL
ptpython
- Debug and Explore Python with PT Python
Pull Request
- Python: Pydigger add author field to a PyPI package
push
- Arrays in Ruby
- Groovy pop push
- TODO in AngularJS
puts
- Crystal part 2 - puts, print, p!
- Getting started with Ruby
- Solution: Number guessing game in Ruby
- Variables and Variable Interpolation in Ruby
Pydigger
- Python: Pydigger add author field to a PyPI package
Pyjithon
- CMOS #10: Michael Kennedy - Talk Python To Me
pymongo
- Counter with Python and MongoDB
pytest
- Combine pytest reports
- Fight or Flight? - dealing with real world applications in Python
- Flask counter with SQLite, SQLAlchemy, pytest
- Flask counter with SQLite, SQLAlchemy, pytest - database migration with yoyo
- Minimal setup for Coverage report at Coveralls for Python projects hosted on GitHub
- Mocking input and output for Python testing
- Parsing test results from JUnit XML files with Python
- Python Pytest assertion error reporting
- Python testing with Pytest: Order of test functions - fixtures
- Python: PyTest fixtures - temporary directory - tmpdir
- Python: Temporary files and directory for Pytest
- Python: fixing random numbers for testing
- Static code analysis for Python code - PEP8, FLAKE8, pytest
- Static code analysis for Python code - PEP8, FLAKE8, pytest
- Testing Python: Getting started with Pytest
- Testing interval-timer, a Python module
- Testing with PyTest
Python
- Add language tags to PyVideo
- Ansible on Ubuntu in VirtualBox environment - using Python 3
- Backend Python developer - Junior Python programmer
- Basic modification of Biological data frames using Pandas by Shelley Klompus
- Books
- CI for farmworld, a Python package - a failed attempt
- Calling Java from Python
- Command line accounting in Python
- Compare the speed of grep with Python regexes
- Compile Python from source code
- Deploying Python Flask using uWSGI and Nginx on Ubuntu 14.04
- Deploying Python with uWSGI and Nginx on Ubuntu 13.10
- Finding an Open Source Python project to contribute to
- Fix URL to repository of the glob-linters Python project
- Functional programming in Python
- Getting started with Flake8
- GitHub Action CI for wsblib Python
- Introduce Continuous Integration (CI) to the starpy Python project
- Managing jobs in a PBS cluster using Python
- Parsing test results from JUnit XML files with Python
- Pretty print JSON with beautifier: How to make a JSON readable
- Python
- Python Functional Programming: Exercises 1
- Python Functional Programming: Introduction
- Python Functional Programming: Iterators and Iterables
- Python Functional Programming: Solutions 1
- Python Functional Programming: filter
- Python Functional Programming: lambda functions
- Python Functional Programming: map
- Python Functional Programming: map - part 2
- Python Functional Programming: reduce
- Python Functional Programming: zip
- Python PIL - Pillow tutorial and examples
- Python: Parsing HTML with Beautiful soup
- Python: Pydigger add author field to a PyPI package
- Registry of 3rd party libraries / packages / modules
- Selenium IDE and the Selenium Driver in Python (PyWeb-IL #56)
- Selenium with Python Live session with Ynon Perek
- Super-global variables in Python exploiting the builtins package
- Why to have Public Version Control System for Open Source Projects?
- Working on PyDigger
- Working on PyDigger with Upasana Shukla
- Working on PyDigger with Upasana Shukla
- Working on PyDigger with Upasana Shukla - part 3
- Working on PyDigger with Upasana Shukla - part 4
- Working on s3path the Python File-System/Path like interface for AWS S3 with Lior Mizrahi
python
- Print version number of Python module
- Python package dependency management - pip freeze - requirements.txt and constraints.txt
- Python: How to get input file on Windows
- Test and CI for MoreBeautifulPython
PYTHONUNBUFFERED
- Python: Capture standard output, standard error, and the exit code of a subprocess
PyVideo
- Add language tags to PyVideo
QA
- Measuring confidence level in your application - Quality Assurance?
- Open Source Desktop Applications
- Project Management, Quality Assurance, and Test Automation in Open Source Projects
Quality
- Quality and Value
quality
- Measuring confidence level in your application - Quality Assurance?
qx
- qx or backticks in python - capture the output of external programs
qxx
- qx or backticks in python - capture the output of external programs
R
- Local development environment for the data.table R project
- Setup local development environment for R-yaml
- Simple command-line counter with file storage in R
R&D
- R&D at $company?
- R&D at Cellex Networks
- R&D at Graduway
- R&D at The Black List
- R&D at WeWork
raise
- Creating an Iterator in Python
Raku
- Bailador
- First impression with Raku
- Raku
Rakudo
- First impression with Raku
- Raku
rand
- Solution: Number guessing game in Ruby
random
- Python: Fermat primality test and generating co-primes
- Python: Repeat the same random numbers using seed
- Python: fixing random numbers for testing
- Solution: Number guessing game in Python
- Testing random numbers in Python using mocks
Random
- Groovy: Number guessing game
- Groovy: Random numbers, random selection from list of values
randrange
- Solution: Number guessing game in Python
- Testing random numbers in Python using mocks
range
- range vs. xrange in Python
raw_input
- Never use input() in Python 2
rdfind
- Patch rdfind, a C++ project to avoid checksum checking
re
- Compare the speed of grep with Python regexes
ReactJS
- Learning ReactJS in a live session
- ReactJS
read
- Bash: Read file line-by-line
- Command-line counter in Python
- Open file and read content in Ruby
- Python: seek - move around in a file and tell the current location
- Python: traversing dependency tree
read_csv
- read_csv file using Pandas skipping rows based on content
readchar
- Signal handling: Catch Ctrl-C in Python
readFile
- Jenkins Pipeline: read a file and write a file - readFile, writeFile
- Reading a file with Node.js - blocking and non-blocking
readFileSync
- Reading a file with Node.js - blocking and non-blocking
readFirstLine
- Groovy: read CSV file
readline
- Open file and read content in Ruby
- Python: seek - move around in a file and tell the current location
readLine
- Groovy: color selector
- Groovy: read from console (STDIN, keyboard)
- Groovy: reading and writing files - appending content
- Groovy: sum of numbers
readLines
- Groovy: reading and writing files - appending content
- Groovy: sum of numbers
realpath
- Bash shell path relative to current script
- Bash: get absolute path to current script
rebase
- Git workflow for individuals
- git branching strategy for when you cannot use the --force
reboot
- Reboot remote server with Rexify
redirectTo
- Angular example: simple router
Redis
- Add GitHub Action CI to the Net-Async-Redis-XS Perl module
reduce
- Solution: Sum of numbers in a file implemented in Ruby
regexes
- Exercise: parse INI file
removeItem
- Multiple counters with plain JavaScript and local storage
- On-load counter with JavaScript and local storage
render_template
- A polling station using Flask
replaceAll
- Groovy: remove spaces from a string
reportlab
- Add image to existing PDF file in Python using reportlab
- Create PDF file with image in Python using reportlab
- Create multipage PDF file in Python using reportlab
- Creating PDF files using Python and reportlab
request
- A polling station using Flask
- Echo with Flask and Python
- HTTP Client request in Node.js (GET request and data from POST request)
requests
- Development environment for Python requests
- Send HTTP Requests in Python
- Using the Open Weather Map API with Python
require
- Getting started with Node.js
resolveSibling
- Groovy: relative path
RestiveJS
- CMOS #7: Obinwanne Hill on RestiveJS
return
- Functions in Linux shell (bash)
- Return multiple values from a function
returncode
- Python: Capture standard output, standard error, and the exit code of a subprocess
returnStatus
- Jenkins Pipeline: Collect exit code from external commands
reverse
- Getting started with Ruby
- Range in Ruby
Rex
- Automation with Rex - part 3 - Rexify
- Learn automation using Rexify
- Multiple OS-es using Rexify
- Reboot remote server with Rexify
- Rex - (R)?ex - Rexify
- Run code locally with Rexify
- Setting up ELK using Rexify
Rexify
- Reboot remote server with Rexify
- Run code locally with Rexify
rpyc
- RPC with Python using RPyC
ruby
- The 14 most important Ruby Resources
Ruby
- CMOS #8: Lynn 'Cyrin' Conway on Bundler, RubyGems and Ruby Together
- Pretty print JSON with beautifier: How to make a JSON readable
- Registry of 3rd party libraries / packages / modules
- Ruby
Ruby Gems
- CMOS #18: Timi Ajiboye on Client Manager, Resque, Friendly ID and other Rails gems
RubyGems
- CMOS #8: Lynn 'Cyrin' Conway on Bundler, RubyGems and Ruby Together
- Linking RubyGems to GitHub or other VCS
Rust
- Hello World with Rust and Cargo
S3
- Working on s3path the Python File-System/Path like interface for AWS S3 with Lior Mizrahi
Safari
- Open JavaScript Console
Sails.js
- CMOS #18: Timi Ajiboye on Client Manager, Resque, Friendly ID and other Rails gems
say
- Display notification from the Mac command line
Scrapy
- CMOS #10: Michael Kennedy - Talk Python To Me
screencast
- Add GitHub Action CI to the Net-Async-Redis-XS Perl module
- Add GitHub Actions to the scale_rb Ruby project
- Add language tags to PyVideo
- Adding first file to your git repository
- Automated tests for sssimp, a simple static site generator in Python
- Automation with Rex - part 3 - Rexify
- Basic modification of Biological data frames using Pandas by Shelley Klompus
- COVID 19 charts by DungeonTiger
- Command line accounting in Python
- Contributing to Open Source Software: VS Code (Visual Studio Code)
- Creating a local git repository
- Crystal part 1 - installation
- Crystal part 2 - puts, print, p!
- Debug and Explore Python with PT Python
- DevOps work - setting up CI and Docker for the course management project with Thomas Klausner
- Developing an application for organising online self knowledge workshops - Part 1
- Developing an application for organising online self knowledge workshops - part 10
- Developing an application for organising online self knowledge workshops - part 2
- Developing an application for organising online self knowledge workshops - part 3
- Developing an application for organising online self knowledge workshops - part 4
- Developing an application for organising online self knowledge workshops - part 5
- Developing an application for organising online self knowledge workshops - part 6
- Developing an application for organising online self knowledge workshops - part 7
- Developing an application for organising online self knowledge workshops - part 8
- Developing an application for organising online self knowledge workshops - part 9
- Displaying a graph from Cyclic Voltammetry (CV) by Gabriele Meilikhov
- Docker course intro
- Docker course: COPY welcome.txt
- Docker course: Docker Registry
- Docker course: Docker hub
- Docker course: ENTRYPOINT vs CMD
- Docker course: Exercise 1
- Docker course: Hello World
- Docker course: Install Docker
- Docker course: Install curl
- Docker course: Ubuntu htop
- Docker course: Use Ubuntu Docker image
- Docker course: What is Docker?
- Docker course: Why use Docker?
- Docker course: busybox
- Docker course: busybox part 2
- Docker course: container vs. image
- Docker course: create image from container
- Docker course: create image using Dockerfile
- Docker course: crontab
- Docker course: getting help
- Docker course: host - daemon - client
- Docker course: mounting host directory
- Docker course: version and info
- Download and install Git on MS Windows
- Download and install git
- Exercise git session 1
- Exercise: Analyze Apache log file - count every host
- Exercise: Hello World
- Exercise: Match Roman numbers
- Exercise: Match hexa, octal, binary numbers
- Exercise: Match numbers with regex
- Exercise: Split file path using regex
- Exercise: parse INI file
- Exercise: parse hours log file and create time report
- Exercise: parse variable width fields
- Exercise: sort SNMP numbers
- Exercise: sort scores
- Exploring GitLab CI
- Fix URL to repository of the glob-linters Python project
- Getting help for git
- Getting started with Git and GitHub (with Olga Tapinova)
- Getting started with Git on MS Windows
- Git file status
- Go Course: Getting started with the Golang course
- Go Course: Go and Open Source
- Go Course: Install the Go compiler
- Go Course: Why use Go? The features of Golang
- Hello World with Rust and Cargo
- How do files really look like in the computer?
- How to contribute to Meta::CPAN
- How to send a Pull-Request on GitHub - fixing the content of the Code-Maven site
- Implementing a feature in the Typescript cucumber-playwright package with Tally Barak
- Infinite scrolling and footer don't work well together (not even on DEV.to)
- Introduce Continuous Integration (CI) to the starpy Python project
- Learn automation using Rexify
- Learning ReactJS in a live session
- LibreLingo - adding a Cancel button
- Linux TAB completion of ls
- Live Crystal Shardbox development with Johannes Müller (straight-shoota)
- Make it easy to setup CI environment - python (once-utils)
- Managing jobs in a PBS cluster using Python
- Multiple OS-es using Rexify
- Patch rdfind, a C++ project to avoid checksum checking
- Programming Bootcamp for Scientists #1
- Programming Bootcamp for Scientists #10
- Programming Bootcamp for Scientists #11
- Programming Bootcamp for Scientists #12
- Programming Bootcamp for Scientists #13
- Programming Bootcamp for Scientists #14 - f-strings and formatted printing
- Programming Bootcamp for Scientists #15 - list methods, FIFO, LIFO
- Programming Bootcamp for Scientists #16 - Solutions for Queue, Stack, MasterMind
- Programming Bootcamp for Scientists #17 - lists: sort, range, enumerate; tuples
- Programming Bootcamp for Scientists #18 - Algorithm complexity and solutions for the list exercises
- Programming Bootcamp for Scientists #19
- Programming Bootcamp for Scientists #2
- Programming Bootcamp for Scientists #20
- Programming Bootcamp for Scientists #21
- Programming Bootcamp for Scientists #22
- Programming Bootcamp for Scientists #23
- Programming Bootcamp for Scientists #24
- Programming Bootcamp for Scientists #25
- Programming Bootcamp for Scientists #26
- Programming Bootcamp for Scientists #27
- Programming Bootcamp for Scientists #28
- Programming Bootcamp for Scientists #29
- Programming Bootcamp for Scientists #3
- Programming Bootcamp for Scientists #30
- Programming Bootcamp for Scientists #31
- Programming Bootcamp for Scientists #32
- Programming Bootcamp for Scientists #33
- Programming Bootcamp for Scientists #34
- Programming Bootcamp for Scientists #35
- Programming Bootcamp for Scientists #36
- Programming Bootcamp for Scientists #37
- Programming Bootcamp for Scientists #38
- Programming Bootcamp for Scientists #39
- Programming Bootcamp for Scientists #4
- Programming Bootcamp for Scientists #40
- Programming Bootcamp for Scientists #41
- Programming Bootcamp for Scientists #42
- Programming Bootcamp for Scientists #5
- Programming Bootcamp for Scientists #6
- Programming Bootcamp for Scientists #7
- Programming Bootcamp for Scientists #8
- Programming Bootcamp for Scientists #9
- Python Functional Programming: Exercises 1
- Python Functional Programming: Introduction
- Python Functional Programming: Iterators and Iterables
- Python Functional Programming: Solutions 1
- Python Functional Programming: filter
- Python Functional Programming: lambda functions
- Python Functional Programming: map
- Python Functional Programming: map - part 2
- Python Functional Programming: reduce
- Python Functional Programming: zip
- Python Programming Bootcamp for Scientists
- Python helper: Let all CI jobs fail separately
- Python: Pydigger add author field to a PyPI package
- Recording changes in Git
- Reporting issues on GitHub (for Perl Advent)
- Selenium with Python Live session with Ynon Perek
- Setting up ELK using Rexify
- Signal handling: Catch Ctrl-C in Python
- Skeleton Go program - error messages in Go
- Start Git with a local repository
- Test and CI for MoreBeautifulPython
- Testing interval-timer, a Python module
- The Algorithms in Python: Testing binary and using doctest
- Travis-CI: Why use Continuous Integration?
- Why use a version control system (VCS)?
- Working on PyDigger
- Working on PyDigger with Upasana Shukla
- Working on PyDigger with Upasana Shukla
- Working on PyDigger with Upasana Shukla - part 3
- Working on PyDigger with Upasana Shukla - part 4
- Working on s3path the Python File-System/Path like interface for AWS S3 with Lior Mizrahi
- Working on the workout-app with Rachel Normand - part 1 ReactJS
- Working on the workout-app with Rachel Normand - part 2 - Python Flask, Pytest
seed
- Python: Repeat the same random numbers using seed
- Python: fixing random numbers for testing
seek
- Python: seek - move around in a file and tell the current location
Selenium
- Selenium IDE and the Selenium Driver in Python (PyWeb-IL #56)
- Selenium with Python Live session with Ynon Perek
separators
- Groovy: read CSV file
service
- Convert any script to a Linux service (daemon)
set
- Bash set -e to stop script on failure
- Bash set -x to print statements as they are executed
SET
- Getting started with SurrealDB using Python and Docker
setItem
- Multiple counters with plain JavaScript and local storage
- On-load counter with JavaScript and local storage
- TODO in HTML5 and plain JavaScript
sh
- Jenkins Pipeline - set and use environment variables
- Jenkins Pipeline: running external programs with sh or bat
- Jenkins pipelines: Arbitrary code execution in the shell
Shardbox
- Live Crystal Shardbox development with Johannes Müller (straight-shoota)
shell
- First impression with Raku
- Functions in Linux shell (bash)
shift
- Arrays in Ruby
shlex
- Python: split command line into pieces as the shell does - shlex.split()
shutdown
- Google Cloud shutdown script
sidenav
- Materialize CSS: Side-nav with Vanilla JavaScript
- Materialize CSS: Side-nav with Vanilla JavaScript on both sides
- Materialize CSS: Side-nav with hierarchy
signal
- Python timeout on a function call or any code-snippet.
- Signal handling: Catch Ctrl-C in Python
size
- Groovy pop push
- Groovy: Lists
- How to get system information of a file or directory in Node.js (stat)
slave
- Jenkins Pipeline - Hello World
sort
- Jenkins Pipeline - set and use environment variables
SourceURI
- Groovy: relative path
split
- Count digits in Ruby
- Iterate over characters of a string in Ruby
- Python: split command line into pieces as the shell does - shlex.split()
- split in Ruby
sprintf
- Groovy: Formatted printing with printf and sprintf
SQL
- SQL
sqlalchemy
- CMOS #10: Michael Kennedy - Talk Python To Me
SQLAlchemy
- Flask counter with SQLite, SQLAlchemy, pytest
- Flask counter with SQLite, SQLAlchemy, pytest - database migration with yoyo
SQLite
- Flask counter with SQLite, SQLAlchemy, pytest
- Flask counter with SQLite, SQLAlchemy, pytest - database migration with yoyo
SRE
- What does an SRE do at Adobe? - Our guest is Rachael Bates
ssh
- Ansible playbook: print output of command
- Generate and deploy ssh private public keypair (ssh-keygen, ssh-copy-id)
- Getting Started with Ansible managing CentOS on Digital Ocean
- Per project (per directory) private ssh keys for git
- Setup 2 Ubuntu boxes in VirtualBox to communicate with each other
- VirtualBox host-only network - ssh to remote machine
ssh-copy-id
- Generate and deploy ssh private public keypair (ssh-keygen, ssh-copy-id)
ssh-keygen
- Generate and deploy ssh private public keypair (ssh-keygen, ssh-copy-id)
- Per project (per directory) private ssh keys for git
SSL
- The importance of using HTTPS
st_mtime
- Show file modification time in Python
stage
- Jenkins Pipeline - Hello World
STAGE_NAME
- Jenkins report the name of the stage that failed
stages
- Jenkins Pipeline - Hello World
stash
- git stash - temporary saving changes
stat
- How to get system information of a file or directory in Node.js (stat)
Statsd
- Statsd with Python
status_code
- Send HTTP Requests in Python
stderr
- Python: Capture standard output, standard error, and the exit code of a subprocess
stdout
- Python: Capture standard output, standard error, and the exit code of a subprocess
step
- Jenkins Pipeline - Hello World
StopIteration
- Creating an Iterator in Python
StreamHandler
- Logging in Python
strftime
- Simple logging in Python
String
- Basic data structures in Ruby (Scalar, Array, Hash)
- Convert String to Number in Ruby
- Groovy casting
strip
- Solution: rectangle in Ruby (CLI and STDIN = Standard IO)
style.display
- Show ads to visitors based on referrer using JavaScript only
subprocess
- Python: Capture standard output, standard error, and the exit code of a subprocess
- qx or backticks in python - capture the output of external programs
substr
- Analyze Apache log file - count localhost in Ruby
- Count web server hits using Ruby
substring
- Bash shell substring
- Groovy: substring
Subversion
- Why Git is better than Subversion for Open Source Projects
- Why to have Public Version Control System for Open Source Projects?
sudo
- Enable passwordless sudo for ansible
- Upgrade Linux packages and install new ones
- Use Docker both as regular user and as root (with or without sudo)
SurrealDB
- CLI phone book in Python using SurrealDB as a database
- Getting started with SurrealDB using Python and Docker
- SurrealDB
survey
- Survey: Configuration Management Tools
- Survey: Continuous Integration Systems
- Survey: The 3 most important Programming languages to you
Svelte
- LibreLingo - adding a Cancel button
svg
- Flag of Greenland in SVG
- Flag of Hungary in SVG
- Flag of Switzerland in SVG
- SVG (Scalable Vector Graphics) Tutorial and Exercises
- SVG Circle
- SVG Ellipse
- SVG Line
- SVG Linear Gradient
- SVG Polygon
- SVG Polyline
- SVG Rectangle
- SVG Square
- SVG X
SVG
- SVG - Scalable Vector Graphics with JavaScript
sys.argv
- Listing a directory using Python
sys.getsizeof
- range vs. xrange in Python
syslog
- Convert any script to a Linux service (daemon)
System
- Groovy System properties
- Groovy: read from console (STDIN, keyboard)
system
- Ruby ENV - access the environment variables
System.exit
- Groovy exit - System.exit - early exit from Groovy script
System.in.newReader().readLine
- Groovy: Number guessing game
systemctl
- Convert any script to a Linux service (daemon)
TAB
- Linux TAB completion of ls
tag
- The difference between annotated and simple git tags
tags
- The difference between annotated and simple git tags
tcpdump
- The importance of using HTTPS
tee
- Python: Capture standard output, standard error, and the exit code of a subprocess
tell
- Python: seek - move around in a file and tell the current location
tempdir
- Python: PyTest fixtures - temporary directory - tmpdir
template
- Angular example: simple router
- Introduction to Handlebars, the JavaScript templating system
templateUrl
- Angular example: simple router
Terraform
- Create Digital Ocean Droplet using Terraform
- Terraform
Testing
- Test Automaton Engineer
testing
- Measuring confidence level in your application - Quality Assurance?
- Mocking input and output for Python testing
- Project Management, Quality Assurance, and Test Automation in Open Source Projects
- Testing with PyTest
tests
- Automated tests for sssimp, a simple static site generator in Python
TestSuite
- Python unittest fails, but return exit code 0 - how to fix
text
- Send HTTP Requests in Python
TextTestRunner
- Python unittest fails, but return exit code 0 - how to fix
The Netherlands
- CMOS #19: Job van Achterberg - Inclusive design
- CMOS #2: Sawyer X on Perl 5
throw
- Groovy throw (raise) exception
time
- Compare the speed of grep with Python regexes
- Measure elapsed time in Linux shell using time and date
- Simple logging in Python
- Testing interval-timer, a Python module
Tk
- Shopping list
TLS
- The importance of using HTTPS
tmpdir
- Python context tools - cwd, tmpdir
- Python: Temporary files and directory for Pytest
tmux
- tmux a terminal multiplexer
to_a
- Range in Ruby
to_f
- Convert String to Number in Ruby
- Solution: rectangle in Ruby (CLI and STDIN = Standard IO)
to_i
- ARGV - the command line arguments of a Ruby program
- Convert String to Number in Ruby
- Solution: Sum of numbers in a file implemented in Ruby
to_lower
- How to convert a string to UPPERCASE or lowercase in Ruby?
to_r
- Convert String to Number in Ruby
to_s
- Getting started with Ruby
to_upper
- How to convert a string to UPPERCASE or lowercase in Ruby?
top
- What ports are open on Linux - which application uses which port
touchend
- Mobile swipe left, swipe right of HTML pages using vanilla JavaScript
touchstart
- Mobile swipe left, swipe right of HTML pages using vanilla JavaScript
trace
- Stack trace in JavaScript
traceback
- Python: print stack trace after catching exception
training
- Micro Training Courses
Travis-CI
- Enable Travis-CI for Continuous Integration
- Minimal setup for Coverage report at Coveralls for Python projects hosted on GitHub
- Travis-CI: Why use Continuous Integration?
triggers
- Jenkins triggers: Periodic polling
trim
- Groovy: remove spaces from a string
TRUE
- Groovy: import standard libraries
try
- Groovy Exception handling (try, catch, Exception)
- Groovy throw (raise) exception
tuple
- Python: Iterate over list of tuples
type
- range vs. xrange in Python
TypeScript
- Implementing a feature in the Typescript cucumber-playwright package with Tally Barak
typing
- Handle different types of parameters in the same function in Python
Ubuntu
- Add application to quick lanuch in Ubuntu
- Ansible on Ubuntu in VirtualBox environment - using Python 3
- Deploying Python Flask using uWSGI and Nginx on Ubuntu 14.04
- Deploying Python with uWSGI and Nginx on Ubuntu 13.10
- Exercise: Linux as a Virtual Environment - install + nginx
- Installing Ubuntu Linux in VirtualBox on top of Windows, Mac, or another Linux system
- Set up CGI with Apache on Ubuntu Linux
- Vagrant and VirtualBox on Ubuntu 17.10 and CentOS 7
- Vagrant for Jenkins on Ubuntu
uc
- How to convert a string to UPPERCASE or lowercase in Ruby?
UK
- CMOS #11: Mohammad S. Anwar - Contributing to CPAN every single day
- CMOS #4: Tom Hudson - gron for making JSON greppable
undefined
- JavaScript function that accepts any number of arguments
Unicode
- How do files really look like in the computer?
Union
- Handle different types of parameters in the same function in Python
- Value might be None in Python - checking with mypy
unittest
- Introduction to Python unittest
- Python unittest fails, but return exit code 0 - how to fix
- Testing the Flask poll
unshift
- Arrays in Ruby
upcase
- How to convert a string to UPPERCASE or lowercase in Ruby?
UPDATE
- Getting started with SurrealDB using Python and Docker
update
- Counter in MongoDB client
uppercase
- How to convert a string to UPPERCASE or lowercase in Ruby?
upsert
- Counter in MongoDB client
uptime
- Ansible playbook: print output of command
- Getting Started with Ansible managing CentOS on Digital Ocean
urllib
- urllib vs urllib2 in Python - fetch the content of 404 or raise exception?
urllib2
- Extract HTML links using Python HTML Parser
- Print HTML links using Python HTML Parser
- Python Weekly statistics (using urllib2, HTMLParser and pickle)
- urllib vs urllib2 in Python - fetch the content of 404 or raise exception?
USA
- CMOS #10: Michael Kennedy - Talk Python To Me
- CMOS #12: Randal Schwartz the host of FLOSS Weekly
- CMOS #14: Johnny Ray Austin - Mo - Django - VueJS
- CMOS #1: Jason Crome on Perl Dancer 2
- CMOS #3: Joel Berger on Mojolicious
- CMOS #5 Lucy Greco - DictationBridge - helping the visually impaired
- CMOS #8: Lynn 'Cyrin' Conway on Bundler, RubyGems and Ruby Together
use strict
- Improving JavaScript code with JSLint
User-Agent
- Download an HTML page using Ruby
UTF-8
- How do files really look like in the computer?
uuid
- Python UUID - Universally unique identifier
uWSGI
- Deploying Python Flask using uWSGI and Nginx on Ubuntu 14.04
- Deploying Python with uWSGI and Nginx on Ubuntu 13.10
Vagrant
- Getting started with Vagrant to set up a virtual environment
- Install Jenkins on Ubuntu
- PHP development environment on CentOS
- Vagrant and VirtualBox on Ubuntu 17.10 and CentOS 7
- Vagrant for Jenkins on Ubuntu
- X-forwarding to run GUI program in Vagrant box
value
- Groovy map (dictionary, hash, associative array)
- Input Output in plain JavaScript
values
- Groovy map (dictionary, hash, associative array)
- Raku Interactive Shell - values in $ variables
VCS
- Why to have Public Version Control System for Open Source Projects?
version
- Print version number of Python module
video
- Add language tags to PyVideo
Vietnam
- CMOS #13: Trung Đinh Quang on GitHub Explorer - a progressive web app
VirtualBox
- Exercise: Linux as a Virtual Environment - install + nginx
- Installing Ubuntu Linux in VirtualBox on top of Windows, Mac, or another Linux system
- Setup 2 Ubuntu boxes in VirtualBox to communicate with each other
- Vagrant and VirtualBox on Ubuntu 17.10 and CentOS 7
- VirtualBox host-only network - ssh to remote machine
- X-forwarding to run GUI program in Vagrant box
visudo
- Enable passwordless sudo for ansible
VueJS
- CMOS #14: Johnny Ray Austin - Mo - Django - VueJS
wait
- Python fork and wait or waitpid
waitpid
- Parallel processing in Python using fork
- Python fork and wait or waitpid
walk
- Listing first elements of a huge directory using Python
- Traversing directory tree using walk in Python - skipping .git directory
warn
- Logging in JavaScript applications
wasSuccessful
- Python unittest fails, but return exit code 0 - how to fix
wc
- Python: Implement the wc command of Linux/Unix (word count)
wc -l
- Show number of files in a directory tree using Shell
- Show number of files in several directory trees using Shell
web
- CMOS #14: Johnny Ray Austin - Mo - Django - VueJS
- CMOS #15: Prosper Otemuyiwa - Laravel
- CMOS #1: Jason Crome on Perl Dancer 2
- CMOS #6: Tally Barak on GraphQL
- Live web sites with editable Open Source source code
- Open Source Web application frameworks
- Ready-made downloadable and deployable Open Source web applications
Web
- Infinite scrolling and footer don't work well together (not even on DEV.to)
webinar
- How to use LinkedIn to find a job and to let a job find you in Hi-Tech
while
- Bash: while loop - break - continue
- Open file and read content in Ruby
Wikipedia
- How to edit Wikipedia
wikipedia
- Wikipedia
- Wikipedia: (is)
- Wikipedia: Acehnese (ace)
- Wikipedia: Afrikaans (af)
- Wikipedia: Arabic (ar)
- Wikipedia: Hebrew (he)
- Wikipedia: Hungarian (hu)
- Wikipedia: Ilokano (ilo)
- Wikipedia: Indonesian (id)
- Wikipedia: Irish (ga)
- Wikipedia: Kapampangan (pam)
- Wikipedia: Meadow Mari (mhr)
- Wikipedia: South Azerbaijani (azb)
- Wikipedia: Sundanese (su)
- Wikipedia: Yorùbá (yo)
Windows 7
- CMOS #13: Trung Đinh Quang on GitHub Explorer - a progressive web app
with
- Command-line counter in Python
- Python context tools - cwd, tmpdir
WNOHANG
- Python fork and wait or waitpid
write
- Command-line counter in Python
- Groovy: reading and writing files - appending content
- Groovy: temporary file with autodelete
- How to write to file in Ruby
writeFile
- Jenkins Pipeline: read a file and write a file - readFile, writeFile
X-Server
- X-forwarding to run GUI program in Vagrant box
xclip
- Download charts from Google Forms on Ubuntu Linux
- Save content of clipboard to file in Ubuntu Linux
XML
- Groovy: import standard libraries
- Parsing test results from JUnit XML files with Python
XMLHttpRequest
- Ajax request for JSON data with vanilla JavaScript
XP
- Pair Programming
xrange
- range vs. xrange in Python
YAML
- YAML - YAML Ain't Markup Language
yield
- Function vs Generator in Python
yoyo
- Flask counter with SQLite, SQLAlchemy, pytest - database migration with yoyo
yum
- Vagrant and VirtualBox on Ubuntu 17.10 and CentOS 7
zero
- Zero
ZeroDivisionError
- Python Flask: catch and handle exceptions in routes using errorhandler
{{
- Getting started with AngularJS
||
- Bash shell always succeed with ||: suffix
||:
- Bash shell always succeed with ||: suffix
}}
- Getting started with AngularJS
~//
- Groovy: remove spaces from a string