for i in */; do
  if [ -d ./$i.git ]; then
    cd ./$i

    echo "About to prune branches of $i..."

    git fetch && git remote prune origin && git branch --merged origin/master | grep -v 'master$' | xargs git branch -D


    echo "Finished trying to prune branches of $i!"
    echo " "
    cd ..
  fi
done

echo "Branch pruning complete!"