findInJar.sh

#!/bin/bash

rootDirectory="$1"
stringToMatch="$2"

for jarfile in $(find "$rootDirectory" -name '*.jar')
do
    grepOut=$(jar tvf "$jarfile" | grep "$stringToMatch")
    if [[ $grepOut ]] 
    then
        echo "Matching file(s) found in $jarfile"
        echo "$grepOut" | awk {'print "\t"$NF'}
    fi
done