Z is a free, simple, safe and convenient front-end for the compress(1), uncompress(1), gzip(1), bzip2(1), tar(1), zip(1) and unzip(1) utilities for compressing and uncompressing files and directories.
The basic idea behind z is that you can just run `z SOMETHING` where SOMETHING is any file, directory, compressed file or compressed archive, and z will do the right thing in a standard way.
Z will prove to be simple for novices and convenient for experts. Great for unpacking downloads or compressing files to save space.
Running `z -h` will provide a usage summary.
Find us on Google+
Universal Binary 
