lzop is a file compressor which is very similar to gzip. It uses the LZO
library for compression services and its main advantages over gzip are much
higher compression and decompression speed (at the cost of some compression
ratio).
lzop is distributed under the terms of the GNU General Public License
(GPL).
nomarch extracts files from the old `.arc' archive format. It can also
list and test such archives.
(nomarch is primarily intended as a `replacement' for the non-Free `arc'
program.)
The Zlib library allows to deflate compressed files and to create gzip (.gz)
files. Zlib is free software and small.
An archive in ZIP format can contain several files compressed with this method,
while a .gz archive can containt only one file. It is a very popular format,
that is why I have written a package for reading files compressed within a Zip
archive.
paq is a family of archivers with the best lossless compression ratios now
available across a wide variety of test data, according to several benchmarks.
A comparison of paq to other compression methods, on a 2GHz T3200, when
compressing a large text file:
Format Size Time (sec) Memory
comp decomp
----------- --------- -------------- -------
Uncompressed 3,152,896
compress 1,319,521 1.6 0.2 .1 MB
gzip -9 1,022,810 0.7 0.1 .1 MB
bzip2 -9 860,097 0.6 0.4 5 MB
p7zip (7z) 824,573 1.5 0.1 195 MB
xz -6 822,016 ? ? ?
zpaq c1 (fast) 806,959 2 2 38 MB
zpaq c2 (mid) 699,191 8 8 112 MB
zpaq c3 (max) 644,190 20 20 246 MB
The port uses the open ZPAQ specification, and contains: a public-domain C++
API for reading and writing ZPAQ compressed data to or from files or objects
in memory; serial and multi-threaded archivers; extra preprocessors for
compression; and stubs for creating self-extracting archives.
This Objective Caml library provides easy access to compressed files in ZIP
and GZIP format, as well as to Java JAR files. It provides functions
for reading from and writing to compressed files in these formats.
This module is a single interface for manipulating different archive
formats. Tarballs, zip files, etc.
The Compress::LZ4 module provides an interface to the LZ4 (de)compressor.
This module lets you peek into archives without extracting them.
It currently supports tar files and zip files.
Archive::Rar uses the standard perl module install process
Simple module for extract archives