| `GITHUB_REPOSITORY_OWNER` | The owner of the repository. | `FranzDiebold` |
| `GITHUB_REPOSITORY_NAME` | The name of the repository. | `github-env-vars-action` |
| `GITHUB_REF_NAME` | The branch name that triggered the workflow. If neither a branch or tag is available for the event type, the variable will not exist. | `feature-branch-1` |
| `GITHUB_SHA_SHORT` | The shortened commit SHA (8 characters) that triggered the workflow. | `ffac537e` |
### Default Environment Variables exposed by GitHub
For a full list of default environment variables exposed by GitHub see [https://help.github.com/en/actions/configuring-and-managing-workflows/using-environment-variables#default-environment-variables](https://help.github.com/en/actions/configuring-and-managing-workflows/using-environment-variables#default-environment-variables).
| `GITHUB_ACTOR` | The name of the person or app that initiated the workflow. | `octocat` |
| `GITHUB_REPOSITORY` | The owner and repository name. | `FranzDiebold/github-env-vars-action` |
| `GITHUB_SHA` | The commit SHA that triggered the workflow. | `ffac537e6cbbf934b08745a378932722df287a53` |
| `GITHUB_REF` | The branch or tag ref that triggered the workflow. If neither a branch or tag is available for the event type, the variable will not exist. | `refs/heads/feature-branch-1` |