git-delete-merged-branches

#!/bin/bash

BRANCHES=$(git branch --merged | grep -v "\*" | grep -v '^[ ]*master$')
echo "Deleting the following merged branches:"
echo "$BRANCHES"
echo
echo "Proceed? (y/N)"

read PROMPT
if [ "$PROMPT" == "y" ]; then
  echo "Deleting..."; sleep 2
  echo $BRANCHES | xargs -n 1 git branch -d
else
  echo "Aborted."
fi