Search a string in compressed files in compressed file

Question

I have a compressed file (an EAR), which contains several compressed files (EAR's, WAR's and JAR's), which also may contain compressed files (JAR's.). Is there a way to find a specific string in this structure using UNIX commands without manually decompressing them one by one?

Thank You.

Answer 1

With the Java jar executable ( jar tf yourEar.ear ), you coud list all contained files in in the EAR in the standard output.
But it doesn't list recursively jars .

So you could :

• chain this result to a grep that specifies the searched string in the filename.
• for each filename ended with .jar listed in the output, you could reuse the same logic.