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LZ4 is a very fast lossless compression algorithm, providing compression speed at 400 MB/s per core, scalable with multi-cores CPU. It also features an extremely fast decoder, with speed in multiple GB/s per core, typically reaching RAM speed limits on multi-core systems. A high compression derivative, called LZ4_HC, is also provided. It trades CPU time for compression ratio. The libraries are BSD licensed, and the binaries are GPLv2.

The UnRAR library is a minor part of the RAR archiver and contains RAR uncompression algorithm. UnRAR requires very small volume of memory to operate. UnRAR library can be used by other programs to extract RAR archives. This package contains small fixes from the http://mcmcc.bat.ru/clamav/.

The UnRAR library is a minor part of the RAR archiver and contains RAR uncompression algorithm. UnRAR requires very small volume of memory to operate. UnRAR library can be used by other programs to extract RAR archives. This package contains small fixes from the http://mcmcc.bat.ru/clamav/.

PeaZip, free archiver utility, Open Source WinRar / WinZip alternative for Windows, Linux and FreeBSD. Compress to 7Z, ARC, BZ2, GZip, PAQ, PEA, self-extracting archives, TAR, WIM, XZ, ZIP files. Open 150+ file types, including ACE, CAB, DMG, ISO, RAR, UDF, ZIPX format. Extract, create and convert archives, split / join files, strong encryption, encrypted password manager, secure delete, find duplicate files, compute hash, export job definition as script to automate backup / restore.

The RPM Package Manager is a powerful command line driven package management system capable of installing, uninstalling, verifying, querying, and updating computer software packages. Each software package consists of an archive of files along with information about the package like its version, a description, and the like. There is also a related API ("Application Program Interface"), permitting advanced developers to bypass 'shelling out' to a command line, and to manage such transactions from within a native coding language.

qpress is a portable file archiver using QuickLZ and designed to utilize fast storage systems to their max. It's often faster than file copy because the destination is smaller than the source.

This is a port of a (un)archiver which deals with ACE archives.

This is an extract-only program which allows access to the contents of ARJ archives. You cannot specify a base directory or select individual files to extract. UNARJ does not support empty directories or volume labels.

The unRAR utility is a freeware program, distributed with source code and developed for extracting, testing and viewing the contents of archives created with the RAR archiver, version 1.50 and above. For the usage and distribution license please read the file LICENSE.TXT. The unRAR utility is a minor part of the RAR archiver and contains RAR uncompression algorithm. UnRAR requires very small volume of memory to operate.

Astrometry engine aims to create correct, standards-compliant astrometric meta data for every useful astronomical image ever taken, past and future, in any state of archival disarray. The engine will take any image and return the astrometry world coordinate system (WCS) -- i.e., a standards-based description of the (usually nonlinear) transformation between image coordinates and sky coordinates -- with absolutely no "false positives" (but maybe some "no answers"). It will do its best, even when the input image has no -- or totally incorrect -- meta-data.