Environment variables

---

• environment variables
• GITHUB_* are reversed

env:
   DEMO_FIELD: value

examples/workflows/env_vars.yml

name: Environment Variables

on: push

env:
  DEMO: Foo

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - name: First step
      run: |
        echo $DEMO

    - name: Second step
      env:
         DEMO: Bar
      run: |
        echo $DEMO