diff nonbinary oneliner recursive

diff-nonbinary.sh

#!/bin/bash
#
# diff two folders located in the same parent-folder
# look for binary files in both, exclude txt|css|tpl|php if they contain binary stings (like foreign language)

oldpath=old/
newpath=new/

if [ ! -d ${oldpath} ]; then echo "${oldpath} is not a folder"; exit ; fi
if [ ! -d ${newpath} ]; then echo "${newpath} is not a folder"; exit ; fi

#
# If you use this as a oneliner replace ${oldpath} and ${newpath} with the folder names
#

excludes=`grep -ILsr -m 1 '.' ./ | sed -e "s/^.*\.//g" | sort | uniq | egrep -v "txt|css|tpl|php" | awk {' printf "-x *."$1" " '}; echo` ; diff -Naur -iEwB ${excludes} ${oldpath} ${newpath}