So you need to put ZIP and UnZIP on your System i? Here is how to do it. I found this usefull.
Link –> Bringing Zip and Unzip to i5/OS PASE and QShell Environments
Zipping documents and directories has become a common practice. It is also possible to use the Zip functions in Portable Application Solutions Environment (i5/OS PASE), with a little help from AIX. This tip provides the steps for bringing the Zip and Unzip functions to your System i server.