Deb (file Format)
deb is the format, as well as filename extension of the package manager, software package format for the Debian Linux distribution and List of Linux distributions#Debian-based, its derivatives. Design Debian packages are standard Unix ar (Unix), ar archives that include two tar (computing), tar archives. One archive holds the control information and another contains the installable data. dpkg provides the basic functionality for installing and manipulating Debian packages. Generally end users don't manage packages directly with dpkg but instead use the APT (Package Manager), APT package management software or other APT (Package Manager)#Front-ends, APT front-ends such as aptitude (software), aptitude (nCurses) and Synaptic (software), synaptic (GTK). Debian packages can be converted into other package formats and vice versa using Alien (file converter), alien, and created from source code using checkinstall or the Debian Package Maker. Some core Debian packages are available ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Aptitude (software)
aptitude is a front end to APT, the Debian package manager. It displays a list of software packages and allows the user to interactively pick packages to install or remove. It has a search system utilizing flexible search patterns. It was initially created for Debian, but has appeared in RPM-based distributions as well. User interfaces ''aptitude'' is based on the ncurses computer terminal library, with which it provides an interface that incorporates some elements commonly seen in graphical user interfaces (GUIs) (such as pull-down menus). In addition to the ncurses interface, aptitude provides an extensive command-line interface (CLI). Even though aptitude is one executable file, it provides command-line functions similar to those of the family of tools provided by APT (apt-get, apt-cache, apt-listchanges, etc.). aptitude also emulates most command-line arguments, allowing it to act as a full replacement for . In the past, it was recommended that aptitude and apt-get not ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Lzma
The Lempel–Ziv–Markov chain algorithm (LZMA) is an algorithm used to perform lossless data compression. It has been used in the 7z format of the 7-Zip archiver since 2001. This algorithm uses a dictionary compression scheme somewhat similar to the LZ77 algorithm published by Abraham Lempel and Jacob Ziv in 1977 and features a high compression ratio (generally higher than bzip2) - LZMA Unix Port was finally replaced by xz which features better and faster compression; from here we know even LZMA Unix Port was a lot better than gzip and bzip2. and a variable compression-dictionary size (up to 4 GB), while still maintaining decompression speed similar to other commonly used compression algorithms. LZMA2 is a simple container format that can include both uncompressed data and LZMA data, possibly with multiple different LZMA encoding parameters. LZMA2 supports arbitrarily scalable multithreaded compression and decompression and efficient compression of data which is parti ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Bzip2
bzip2 is a free and open-source file compression program that uses the Burrows–Wheeler algorithm. It only compresses single files and is not a file archiver. It relies on separate external utilities such as tar for tasks such as handling multiple files, and other tools for encryption, and archive splitting. bzip2 was initially released in 1996 by Julian Seward. It compresses most files more effectively than older LZW and Deflate compression algorithms but is slower. bzip2 is particularly efficient for text data, and decompression is relatively fast. The algorithm uses several layers of compression techniques, such as run-length encoding (RLE), Burrows–Wheeler transform (BWT), move-to-front transform (MTF), and Huffman coding. bzip2 compresses data in blocks between 100 and 900 kB and uses the Burrows–Wheeler transform to convert frequently recurring character sequences into strings of identical letters. The move-to-front transform and Huffman coding are then ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Zstd
Zstandard is a lossless data compression algorithm developed by Yann Collet at Facebook. Zstd is the corresponding reference implementation in C, released as open-source software on 31 August 2016. The algorithm was published in 2018 as , which also defines an associated media type "application/zstd", filename extension "zst", and HTTP content encoding "zstd". Features Zstandard was designed to give a compression ratio comparable to that of the DEFLATE algorithm (developed in 1991 and used in the original ZIP and gzip programs), but faster, especially for decompression. It is tunable with compression levels ranging from negative 7 (fastest) to 22 (slowest in compression speed, but best compression ratio). Starting from version 1.3.2 (October 2017), zstd optionally implements very-long-range search and deduplication (, 128 MiB window) similar to rzip or lrzip. Compression speed can vary by a factor of 20 or more between the fastest and slowest levels, while decom ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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XZ Utils
XZ Utils (previously LZMA Utils) is a set of free software command-line lossless data compressors, including the programs lzma and xz, for Unix-like operating systems and, from version 5.0 onwards, Microsoft Windows. For compression/decompression the Lempel–Ziv–Markov chain algorithm (LZMA) is used. XZ Utils started as a Unix port of Igor Pavlov's LZMA- SDK that has been adapted to fit seamlessly into Unix environments and their usual structure and behavior. Features XZ Utils can compress and decompress the ''xz'' and ''lzma'' file formats. Since the LZMA format has been considered legacy, XZ Utils by default compresses to xz. In addition, decompression of the .lz format used by lzip is supported since version 5.3.4. In most cases, xz achieves higher compression rates than alternatives like zip, gzip and bzip2. Decompression speed is higher than bzip2, but lower than gzip. Compression can be much slower than gzip, and is slower than bzip2 for high levels of comp ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Ar (Unix)
ar, short for archiver, is a shell command for maintaining multiple files as a single archive file. Originally developed for Unix, it is widely available on Unix-based systems, and similar commands are available on other platforms. Today, ar is generally used only to create and update static library files that the link editor or linker uses and for generating .deb packages for the Debian family; it can be used to create archives for any purpose, but has been largely replaced by tar for purposes other than static libraries. An implementation of ar is included as one of the GNU Binutils. In the Linux Standard Base (LSB), ar has been deprecated and is expected to disappear in a future release of that standard. The rationale provided was that "the LSB does not include software development utilities nor does it specify .o and .a file formats." File format details The ar format has never been standardized; modern archives are based on a common format with two main variants, B ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Gzip
gzip is a file format and a software application used for file compression and decompression. The program was created by Jean-loup Gailly and Mark Adler as a free software replacement for the compress program used in early Unix systems, and intended for use by GNU (from which the "g" of gzip is derived). Version 0.1 was first publicly released on 31 October 1992, and version 1.0 followed in February 1993. The decompression of the ''gzip'' format can be implemented as a streaming algorithm, an important feature for Web protocols, data interchange and ETL (in standard pipes) applications. File format gzip is based on the DEFLATE algorithm, which is a combination of LZ77 and Huffman coding. DEFLATE was intended as a replacement for LZW and other patent-encumbered data compression algorithms which, at the time, limited the usability of the compress utility and other popular archivers. "gzip" also refers to the gzip file format (described in the table below). In sho ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Deb File Structure
Deb or DEB may refer to: People * Deb (surname) * Deb (given name) * A débutante DEB * Dynamic energy budget theory (DEB theory), a metabolic theory * Epidermolysis bullosa dystrophica (dystrophic EB), a disease * German Ice Hockey Federation (''Deutscher Eishockey Bund'') * Diepoxybutane, an industrial chemical * Distant Education Bureau, India * New South Wales 900/800 class railcar (DEB sets), Australian rolling stock Other uses * deb (file format), Debian * Debrecen International Airport IATA airport code * Deb Shops, a former US clothing chain * ''Deb'' (album), 2005, by Souad Massi See also * Debs (other) * Debra (other) * Debbie (other) * Deborah (other) * DAB (other) {{disambig ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Debian-Installer
Debian-Installer is a system installer for Debian and its derivatives. It originally appeared in Skolelinux (Debian-Edu) 1.0, released in June 2004, but is now used as the official installation system since Debian 3.1 (Sarge), which was released on June 6, 2005. Features Debian-Installer consists of two modes: a text mode and a graphical mode. Multiple components of the installer exists to configure various aspects of the installed system, and configuration of some components may require user input. Regardless of which mode is selected, the installer first prompts the user for a language selection. Some of the tasks the installer performs after a language selection is as follows: * Detects hardware * Detect installation media * Configure the network * Configure APT/select mirrors * Set up user accounts * Detect other operating systems Win32-loader win32-loader (officially Debian-Installer Loader) is a discontinuedhttps://lists.debian.org/debian-devel-announce/2025/05/ms ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |