cleanup_local_branches.sh

#!/bin/bash

args="--merged"
echo "delete some merged branches:"
{ git branch $args | grep -E -v "master|stable|prod|\*" | cut -c 3- | while read -r branchname; do
    read -r -u 3 -p "Delete $branchname (y/n)? " answer
    case ${answer:0:1} in
        y|Y )
            git branch -d "$branchname"
        ;;
        * )
            echo "$branchname not deleted"
        ;;
    esac
done } 3<&0