git branch -d <branchname>

This command is used to delete a specified branch in Git. It removes the specified branch from the local repository. -d is a shortcut for --delete.

If the branch has unmerged changes, the command will fail unless the --force flag is used. Alternatively, you can use -D which is a shortcut for --delete --force.

It's important to note that this command can only be used to delete local branches and not remote branches. To delete a remote branch, you can use git push origin --delete <branchname>.