#!/bin/sh
# Use grep and sed to replace $1 with $2 recursively and print what is done
grep --null --recursive --files-with-matches \
  --binary-files=without-match "--exclude-dir={$IGNOREDIRS}" "$1" |
	xargs -0 sed -i "\|${1}|{
		s||${2}|g
		w /dev/stdout
	}"