Exercise: Remove write protected file

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1. Create a file that has no rights at all. Try to remove it.

1. Create a directory and in it create a file that has no rights.
2. Remove the write rights from the directory.
3. Try to remove the file.

1. Create a directory and in it create a file.
2. Remove the eXecutable bit from the directory.
3. Try to list the content of the directory.