Git remove local branches which were merged

git-delete-local-branches-which-were-merged.sh

function git-prune-branches() {
        echo "switching to master or main branch.."
        git branch | grep 'main\|master' | xargs -n 1 git checkout
        echo "fetching with -p option...";
        git fetch -p;
        echo "running pruning of local branches"
        git branch -vv | grep ': gone]'|  grep -v "\*" | awk '{ print $1; }' | xargs -r git branch -d ;
}