NAME
- gzip, gunzip - compression and decompression utilities
SYNOPSIS
-
gzip
[
-v
] [
-level
] [
file...
]
gunzip [ file... ] DESCRIPTION
-
Gzip
and
gunzip
perform data compression and decompression
compatible with the Unix
gzip
file format,
which uses a hybrid Lempel-Ziv 1977 and Huffman compression algorithm
called `deflate'.
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 SEE ALSO
- filter(2), filter-deflate(2)
| GZIP(1) | Rev: Tue Jan 29 13:11:31 GMT 2008 |