Remove all local branches that have been merged

git-clean-merged-branches

# Will remove all merged branches, except the current one.

git remote prune origin && git branch --merged | grep -v "\*" | xargs -n 1 git branch -d

To add it as an alias :

git config --global alias.menage '!git remote prune origin && git branch --merged | grep -v "\*" | xargs -n 1 git branch -d'