Name
gzip
Synopsis
gzip [options
] [files
] gunzip [options
] [files
] zcat [options
] [files
]
Compresses specified files (or read from standard input) with
Lempel-Ziv coding (LZ77). Rename compressed file to
filename
.gz
; keep
ownership modes and access/modification times. Ignore symbolic links.
Uncompress with gunzip
, which takes all of
gzip
’s options, except those
specified. zcat
is identical to
gunzip
-c
and takes the options
-fhLV
, described here. Files compressed with the
compress
command can be decompressed using these
commands.
gzip
doesn’t preserve resource
forks or HFS metadata when compressing files that contain them.
Options
-
-n
,--fast
,--best
Regulate the speed of compression using the specified digit
n
, where-1
or--fast
indicates the fastest compression method (less compression) and-9
or--best
indicates the slowest compression method (most compression). The default compression level is-6
.-
-c
,--stdout
,--to-stdout
Print output to standard output, and don’t change input files.
-
-d
,--decompress
,--uncompress
Same as
gunzip
.-
-f
,--force
Force compression.
gzip
normally prompts for permission to continue when the file has multiple links, its.gz
version already exists, or it is reading compressed data to or from a terminal.-
-h
,--help
Display a help screen and then exit.
-
-l
,--list
Expects to be given compressed files as arguments. Files may be compressed by any of the following methods:
gzip
,deflate
,compress
,lzh
, andpack
. For each file, list uncompressed and compressed ...
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