GNU Gzip is a popular data compression program
originally written by Jean-loup Gailly for the GNU
project. Mark Adler wrote the decompression part.
We developed this program as a replacement for compress
because of the Unisys and IBM patents covering the
LZW algorithm used by
compress. These patents made it impossible for us to use
compress, and we needed a replacement. The superior compression
ratio of gzip is just a bonus.
can be found on the main GNU ftp server:
(via HTTP) and
(via FTP). It can also be found
on the GNU mirrors;
a mirror if possible.
is available online, as
is documentation for most GNU software. You may
also find more information about
or by looking at
or similar directories on your system. A brief summary is available by
running gzip --help.
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is free software; you can redistribute it and/or modify it under the
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Software Foundation; either version 3 of the License, or (at your
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