This is the file README for the gzip distribution.
+The GNU gzip home page is https://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
gzip is free software, you can redistribute it and/or modify it under
the terms of the GNU General Public License, a copy of which is
-provided under the name COPYING. The latest version of gzip are always
-available from ftp://ftp.gnu.org/gnu/gzip or in any of the gnu
+provided under the name COPYING. The latest version of gzip is always
+available from https://ftp.gnu.org/gnu/gzip or in any of the GNU
mirror sites.
-- sources in gzip-*.tar (or .shar or .tar.gz).
-- MSDOS lha self-extracting exe in gzip-msdos-*.exe. Once extracted,
- copy gzip.exe to gunzip.exe and zcat.exe, or use "gzip -d" to decompress.
- gzip386.exe runs much faster but only on 386 and above; it was compiled with
- djgpp 1.10 available in directory omnigate.clarkson.edu:/pub/msdos/djgpp.
-
-A VMS executable is in ftp://ftp.spc.edu/[.macro32.savesets]gzip-1-*.zip
-(use [.macro32]unzip.exe to extract). A PRIMOS executable is available
-in ftp://ftp.lysator.liu.se/pub/primos/run/gzip.run.
-
-Some ftp servers can automatically make a tar.Z from a tar file. If
-you are getting gzip for the first time, you can ask for a tar.Z file
-instead of the much larger tar file.
-
Many thanks to those who provided me with bug reports and feedback.
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, 2009-2018 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
projects / debian / gzip / blobdiff