Example
To delete a branch on the origin remote repository, you can use for Git version 1.5.0 and newer
git push origin :<branchName>
and as of Git version 1.7.0, you can delete a remote branch using
git push origin --delete <branchName>
To delete a local remote-tracking branch:
git branch --delete --remotes <remote>/<branch>
git branch -dr <remote>/<branch> # Shorter
git fetch <remote> --prune # Delete multiple obsolete tracking branches
git fetch <remote> -p # Shorter
To delete a branch locally. Note that this will not delete the branch if it has any unmerged changes:
git branch -d <branchName>
To delete a branch, even if it has unmerged changes:
git branch -D <branchName>
