Bulk replace with ag for MAC

bulk_replace

#!/bin/bash
# Bulk replace for MAC 
# ag <https://github.com/ggreer/the_silver_searcher>
# original idea: https://gist.github.com/hlissner/db74d23fc00bed81ff62
# usage: replace [search] [replace]

function replace {
  ag -0 -l "$1" | xargs -0 sed -i "" -E "s/$1/$2/g"
}