Searching for a class in Multiple jars using shell script

#!/bin/sh

LOOK_FOR="funn/class/name"

for i in `find . -name "*jar"`
do
 echo "Searching in jar $i ..."
 jar tvf $i | grep $LOOK_FOR > /dev/null
 if [ $? == 0 ]
 then
   echo "==> Class Available in  \"$LOOK_FOR\" in $i"
 fi
done