#!/bin/sh
CNT=$#
if [ $CNT = 2 ] ; then
	echo "find . -type f -exec perl -pi -e 's/\"$1\"/\"$2\"/g' {} \;"
	find . -type f -exec perl -pi -e 's/$1/$2/g' {} \;
else
        echo "[Usage] => replace.sh {search_string} {replace_string}"
fi