git check-ref-format

Checks if a given refname is acceptable, and exits with a non-zero status if it is not.

• Check the format of the specified refname:

git check-ref-format {refs/head/refname}

• Print the name of the last branch checked out:

git check-ref-format --branch @{-1}

• Normalize a refname:

git check-ref-format --normalize {refs/head/refname}

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