Remove merged remote branches in repository.

git-merged-remove.sh

#!/bin/sh
# Taken from and modified
#   http://devblog.springest.com/a-script-to-remove-old-git-branches/

echo "The following remote branches are fully merged into master and will be removed:"
git branch -r --merged master | sed 's/ *origin\///' | grep -v 'master$'

read -p "Continue (y/n)?"
if [ "$REPLY" == "y" ] ; then # Remove remote fully merged branches 
  git branch -r --merged master | sed 's/ *origin\///' | grep -v 'master$' | xargs -I % git push origin --delete % 
  echo "Done!"
  # Mac only: say “Obsolete branches are removed” 
fi

# to remove your local branches that were removed from remote
#   git remote prune origin