git sub

git-sub

#!/bin/bash
# author: torpedoallen
# usage: find and replace
# how-to: put the file into your PATH like /usr/local/bin and make it executable.
# reminders: the default sed command will no longer work fine with -i argument, please replace with gnu-sed

if [ -z "$3" ]; then git grep -zl "$1" | xargs -0 sed -i "s/$1/$2/g"; else git grep -zl "$1" -- $3  | xargs -0 sed -i "s/$1/$2/g"; fi