Search inside a Jar file..

Shell Programming and Scripting
1

Hey Guys,

    I need to search inside all the jar files of my directory for a specific string. Can anyone guide me as to how i can do it. I need this urgently please. More specifically i need to search for a class file name in the jar files.

Thanks in advance :slight_smile:

2

use the -a option of grep:

grep -a text_to_search file.jar

a bit of advice: don't expect people here to give you urgent replies. an urgency on your part does not create urgency for others.

3

Advice taken :slight_smile: More specifically i am looking for this.

      jar file contains a list of class files. I want to check against the name of one of the class files. I want to do this recursively. The approach that i am looking at is somewhat on the lines of - extracting the jar file, and then checking the extracted files to see if any of them contain the required string as a part of their class name. Does that make sense? 

     or if there is a better approach, please let me know.
4

This is what i have tried.

#!/bin/bash

for i in *.jar ; do
        jar xf $i    /* This will extract the jar file */
        find -name "SearchString" . /*This will search for the search string */
                                                   
done

I know i am far from done.. So i need help on this.

5

If you are just doing a filename check, a "jar tf" would be more suitable as it outputs all files inside a jar recursively - then you can easily grep, or do whatever with the file list.