Steps and Actions

A workflow is made up of one or more Jobs. Jobs run in parallel by default. Each job runs inside its own virtual machine runner.

Inside a job, you define a sequence of Steps.

Steps

A step can either run a shell command or use an Action (a reusable chunk of code written by the community).

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      # 1. Use a pre-built action to checkout the code
      - name: Checkout code
        uses: actions/checkout@v4

      # 2. Run a shell command
      - name: Say Hello
        run: echo "Hello World!"
        
      # 3. Run multiple shell commands
      - name: Setup
        run: |
          mkdir temp
          cd temp
          touch file.txt