Git clear branch merged

gistfile1.txt

#!/bin/sh
set -x
git checkout master
git fetch
git pull
git branch -r --merged | grep origin | grep -v '>' | grep -v master | xargs -L1 | cut -d"/" -f2- | xargs git push origin --delete
git branch --merged | grep -v master |  xargs git branch -d
git fetch -p