Commands Cheat Sheet

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(Perfect for making buy/build decisions or internal reviews.)

Most-used commands
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Workflow Syntax

name: workflow_name
Define workflow name

on: [push, pull_request]
Specify events that trigger workflow

jobs: job_id: runs-on: ubuntu-latest
Define job and runner

steps: - uses: actions/checkout@v2
Checkout repository code

run: command
Execute shell command

Workflow Commands

::set-output name=key::value

Set output parameter



::add-path::/path/to/dir

Add directory to PATH



::add-mask::value

Mask a value in logs



::error file=file,line=line,col=col::message

Create error annotation



::warning file=file,line=line,col=col::message

Create warning annotation

Environment Variables

${{ github.event_name }}

Name of the event that triggered workflow



${{ github.sha }}

Commit SHA



${{ github.ref }}

Git ref (e.g., refs/heads/main)



${{ github.repository }}

Repository name with owner



${{ secrets.SECRET_NAME }}

Access repository secrets

CLI Commands

gh workflow list

List workflows



gh workflow view [workflow]

View workflow details



gh workflow run [workflow]

Run a workflow



gh workflow disable [workflow]

Disable a workflow



gh workflow enable [workflow]

Enable a workflow

Testing Locally

act

Run GitHub Actions locally using nektos/act



act push

Run push event workflows



act pull_request

Run pull request event workflows



act -j job_id

Run specific job