Bash Script to Find a Symbol in a Substantial Amount of .jar Files

Question

In my mind, this should find the symbol I am looking for. Instead it does not find the symbol. Where am I going wrong? I know the symbol exists in one of the .jar files.

  1 ARRAY=(`find ${PWD} -name '*.jar'`);
  2 SYMBOL=$1;
  3 for i in ${ARRAY[@]};
  4 do
  5     JAR=`jar -tf $i`;
  6     GREPED=`echo ${JAR} | grep -s ${SYMBOL} | tr -d ' '`;
  7     if [ "${GREPED}" != "" ]; then
  8         echo $GREPED
  9     fi
  7 done

Perhaps I am misunderstanding the jar command options?

Say I download the android SDK for fun and run a tool on it that says it cant find a given class com.android.email.mail.Flag. So I run the above script with:

$ ./script.sh Flag

This should printh out the output of the jar command. If I wanted the jar file line 8 above would be

echo $i.

Answer 1

The jar usage seems ok, but there are too many variables, arrays, pipes that could have been avoided.

The following should work for you:

for i in `find ${PWD} -name "*.jar"`; do
  jar -tf $i | grep -qs $1 && echo $i
done

This would list the jar file(s) containing the symbol.