GZIP(1)
NAME
gzip, gunzip − compression and decompression utilities
SYNOPSIS
gzip [ −v ] [ −level ] [ file... ]
gunzip [ file... ]
DESCRIPTION
Gzip and gunzip perform data compression and decompression to and from the standard gzip file format. If no arguments are given gzip compresses each file replacing it by a file of the same name with the a .gz suffix appended. If no files are given, standard input and standard output are used. Level is a single decimal digit between 1 and 9; higher numbers give better compression. The default level is 6. The −v option causes gzip to report the compression ratio of each file that it compresses.
Gunzip performs the opposite operation to gzip; each file (which must have a .gz suffix) is uncompressed, and replaced by a file of the same name with the .gz suffix removed. If no files are given, standard input and standard output are used.
SOURCE
/appl/cmd/gzip.b
/appl/cmd/gunzip.b