Filename extensions: Z

The UNIX compress program is used to reduce the size of a single file. If more than one file is to be compressed, they must be tarred together first. By default the compress program will create a file with the "Z" extension. This file will have to be uncompressed before use and will not be easily uncompressed on non-UNIX systems. It is probably better to use gzip both for reasons of portability and compactness.