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Comment by can16358p | Hacker News Reader

"git-delete-gone-branches" is exactly what I've been needing, will give it a try soon!

"git delete gone branches" is a one liner that you can google. first stack overflow result gives you the answer:

    git remote prune origin

Why would you use this 50 line script to do the same?

This only removes references to remote branches. See e.g. [0]. The command in OP operates on local branches.

Just for anyone else following along..you're right. Here it is.

    git fetch -p && git branch -vv | awk '/: gone]/{print $1}' | xargs git branch -d