Get the version of the JDBC drivers?

Perhaps I am not able to find this piece of information.
I want to know the version of the each of the JDBC drivers installed on webMethods. I see ojdbc14.zip and sqljdbc.jar etc driver files in IntegrationServer/lib/jars. Is there a way (a unix command?) to get the versions of these drivers?

Cheers
Guna

Within the jar/zip there should be a manifest file with the version info.