Finds a class in a library of JARs

findclass.sh

#!/usr/bin/bash

if [ $# != 2 ]
then
  echo usage: findclass [CLASS] [DIR]
  exit 1
fi

jars=(`find $2 -name '*.jar'`)

for jarfile in ${jars[@]}
do
  echo Processing $jarfile ...
  jar tvf $jarfile | grep "/$1.class\$"
done