# git symbolic-ref: Usage, Options & Common CI Errors

> git symbolic-ref reads and writes symbolic refs like HEAD, used to find or set the default branch. Reference for --short, -d, and detached-HEAD errors.

Source: https://latchkey.dev/learn/command-reference/git-symbolic-ref  
Updated: 2026-06-25

git symbolic-ref reads or updates symbolic references such as HEAD or refs/remotes/origin/HEAD.

symbolic-ref is the reliable way to discover the current branch or a remote’s default branch in scripts.

## What it does

git symbolic-ref reads the target of a symbolic ref (e.g. HEAD points to refs/heads/main) or sets one. It is how you reliably query the current branch or origin’s default branch.

## Common usage

```Terminal
git symbolic-ref HEAD                 # refs/heads/main
git symbolic-ref --short HEAD         # main
git symbolic-ref refs/remotes/origin/HEAD   # origin's default
git symbolic-ref HEAD refs/heads/main # repoint HEAD
```

## Options

| Flag | What it does |
| --- | --- |
| --short | Strip the refs/heads/ prefix |
| -d / --delete | Delete a symbolic ref |
| -q / --quiet | No error if the ref is not symbolic |
| <name> <ref> | Point a symbolic ref at a target |

## Common errors in CI

fatal: ref HEAD is not a symbolic ref - HEAD is detached (pointing at a SHA, common in CI). Use git rev-parse HEAD for the SHA instead. To find origin’s default branch when origin/HEAD is unset, run git remote set-head origin -a first.

## Using this in CI

CI checkouts are shallow and detached by default, which changes the answer this command gives you. Commands that read history, branch names, or tags need the checkout configured for it.

```.github/workflows/ci.yml
- uses: actions/checkout@v4
  with:
    fetch-depth: 0   # history, tags, and git describe all need this

- run: |
    git rev-parse --is-shallow-repository   # expect false
    git rev-parse --abbrev-ref HEAD          # prints HEAD when detached
```

> `git rev-parse --abbrev-ref HEAD` returns the literal string `HEAD` on a detached checkout rather than a branch name. On GitHub Actions read `github.ref_name` instead; the git command cannot know what it was checked out for.

## FAQ

### git symbolic-ref: Usage, Options & Common CI Errors?

symbolic-ref is the reliable way to discover the current branch or a remote’s default branch in scripts.

### What it does?

git symbolic-ref reads the target of a symbolic ref (e.g. HEAD points to refs/heads/main) or sets one. It is how you reliably query the current branch or origin’s default branch.

### Common errors in CI?

fatal: ref HEAD is not a symbolic ref - HEAD is detached (pointing at a SHA, common in CI). Use git rev-parse HEAD for the SHA instead. To find origin’s default branch when origin/HEAD is unset, run git remote set-head origin -a first.

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