lzip

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lzip

Lzip.png
Basic data

Publishing year 2008
Current  version 1.21
( January 14, 2019 )
operating system Unix-like , Windows
programming language C ++ or C
category Data compression
License GPL ( Free Software )
lzip.nongnu.org/lzip.html

lzip is a free data compression program for Unix systems , which allows the use of the modern Lempel-Ziv-Markow-Algorithm (LZMA) in the usual way from common Unix compression tools. It has a very similar handling to the established Linux packing tools gzip and bzip2 , uses a new file format with properties comparable to their formats and, like them, does not archive multiple files itself, but relies on the combination with pure archive formats such as tar . The file name extension .lz and the MIME type are application/x-lzip provided for lzip archives . In the format, particular emphasis was placed on the integrity check , for which a 64-bit checksum is integrated.

lzip was written by Antonio Diaz in C ++ and is distributed as free software also in the source code under the conditions of version 2 or later of the GNU General Public License (GPL). With its objectives and its properties, it is in direct competition with the XZ Utils .

There is also a multithreaded version of lzip called plzip, which can use all CPU cores on a multiprocessor system. This usually saves a lot of time. The generated .lz file is usually somewhat larger than a version generated with lzip, but fully compatible. It can be processed by any program that can process .lz files, regardless of whether it is running on a single or multi-processor system.

use

The format of the software installation packages of the Argentine GNU / Linux distribution Dragora is based on lzip. In popular Linux distributions, it can usually be installed directly from the standard package sources, as can the parallel version. GNOME's archive management tool, File Roller, supports lzip files.

history

After 7-Zip , lzma_alone from the LZMA SDK and the LZMA Utils, lzip 2008 for the first time offered a complete solution for using LZMA in Unix style - complete with native Uni * support, a (gzip-like) familiar to Unix users User interface and a new Unix-friendly container format with checksums and magic numbers . However, lzip was only able to partially establish itself before the LZMA Utils were further developed accordingly and now offered something similar under the name "XZ Utils". The XZ Utils and their file format have meanwhile become more widespread than lzip (and its format).

Web links

Individual evidence

  1. Lzip 1.21 released . January 14, 2019.
  2. Plzip - A massively parallel lossless data compressor. In: lzip.nongnu.org. Retrieved April 29, 2016 .
  3. http://packages.debian.org/lzip
  4. https://apps.fedoraproject.org/packages/lzip
  5. http://software.opensuse.org/search?q=lzip
  6. ^ Brian Lindholm: New Options in the World of File Compression . In: Linux Gazette . No. 162 , May 2009 (English, linuxgazette.net [accessed January 7, 2011]).