This is the file README for the gzip distribution.
+The GNU gzip home page is http://www.gnu.org/software/gzip.
+
gzip (GNU zip) is a compression utility designed to be a replacement
for 'compress'. Its main advantages over compress are much better
compression and freedom from patented algorithms. The GNU Project
or gzip'ed).
Several planned features are not yet supported (see the file TODO).
-See the file NEWS for a summary of changes since 0.5. See the file
-INSTALL for installation instructions. Some answers to frequently
-asked questions are given in the file INSTALL, please read it. (In
-particular, please don't ask me once more for an /etc/magic entry.)
+See the file NEWS for a summary of changes since the last release.
+See the file INSTALL for installation instructions.
WARNING: gzip is sensitive to compiler bugs, particularly when
optimizing. Use "make check" to check that gzip was compiled
If you send me patches for machines I don't have access to, please test them
very carefully. gzip is used for backups, it must be extremely reliable.
-GNU tar 1.11.2 has a -z option to invoke directly gzip, so you don't have to
-patch it. The package ftp.uu.net:/languages/emacs-lisp/misc/jka-compr19.el.Z
-also supports gzip'ed files.
-
The znew and gzexe shell scripts provided with gzip benefit from
-(but do not require) the cpmod utility to transfer file attributes.
-It is available in
-ftp://gatekeeper.dec.com/pub/usenet/comp.sources.unix/volume11/cpmod.Z.
+(but do not require) the (non-GNU) cpmod utility to transfer file attributes.
The sample programs zread.c, sub.c and add.c in subdirectory sample
are provided as examples of useful complements to gzip. Read the
See the files THANKS and ChangeLog for more details.
- Note about zip vs. gzip:
+ Note about zip vs. gzip:
The name 'gzip' was a very unfortunate choice, because zip and gzip
are two really different programs, although the actual compression and
gzip and gunzip are distributed as a single program. zip and unzip
are, for historical reasons, two separate programs, although the
-authors of these two programs work closely together in the info-zip
+authors of these two programs work closely together in the Info-ZIP
team. zip and unzip are not associated with the GNU project.
-See http://www.cdrom.com/pub/infozip/ for more about zip and unzip.
+See http://info-zip.org/ for more about zip and unzip.
+
+For any copyright year range specified as YYYY-ZZZZ in this package
+note that the range specifies every single year in that closed interval.
========================================================================
-Copyright (C) 1999, 2001, 2002, 2006, 2007 Free Software Foundation, Inc.
+Copyright (C) 1999, 2001-2002, 2006-2007, 2009-2012 Free Software Foundation,
+Inc.
Copyright (C) 1992, 1993 Jean-loup Gailly
Permission is granted to copy, distribute and/or modify this document
-under the terms of the GNU Free Documentation License, Version 1.2 or
+under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
Texts. A copy of the license is included in the ``GNU Free