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Deb (file Format)
deb is the format, as well as extension of the software package format for the Debian Linux distribution and its derivatives. Design Debian packages are standard Unix ar archives that include two 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 management software or other APT front-ends such as aptitude (nCurses) and synaptic (GTK). Debian packages can be converted into other package formats and vice versa using alien, and created from source code using checkinstall or the Debian Package Maker. Some core Debian packages are available as udebs ("micro debs"), and are typically used only for bootstrapping a Debian installation. Although these files use the ''udeb'' filename extension, they adhere to the same structure specification as ordinary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 an especially powerful 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 apt- family of tools (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- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Checksum
A checksum is a small-sized block of data derived from another block of digital data for the purpose of detecting errors that may have been introduced during its transmission or storage. By themselves, checksums are often used to verify data integrity but are not relied upon to verify data authenticity. The procedure which generates this checksum is called a checksum function or checksum algorithm. Depending on its design goals, a good checksum algorithm usually outputs a significantly different value, even for small changes made to the input. This is especially true of cryptographic hash functions, which may be used to detect many data corruption errors and verify overall data integrity; if the computed checksum for the current data input matches the stored value of a previously computed checksum, there is a very high probability the data has not been accidentally altered or corrupted. Checksum functions are related to hash functions, fingerprints, randomization functions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 In most cases, xz achieves higher compression rates than alternatives like 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 compression, and is most useful when a compressed file will be used many times. XZ Utils consists of two major components: * , the command-line compressor and decompressor (analogous to gzip) * liblzma, a software library with an API similar to zlib Various command short ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ar (Unix)
The archiver, also known simply as ar, is a Unix utility that maintains groups of files as a single archive file. 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, BSD and System V (initially known as COFF, and used as well by GNU, ELF, and Windows.) Historically there have been other var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 where 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 compress and other popular archivers. "gzip" is often also used to refer to the gzip file format, which is: * a 10-byte header, contai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deb File Structure
Deb or DEB may refer to: People * Deb (surname) * Deb (given name) * A débutante DEB * Dynamic energy budget theory, a metabolic theory * Epidermolysis bullosa dystrophica * German Ice Hockey Federation (''Deutscher Eishockey Bund'') * Diepoxybutane, an industrial chemical * Distant Education Bureau, India * New South Wales 900/800 class railcar, Australia Other uses * deb (file format), Debian * Debrecen International Airport Debrecen International Airport is the international airport of Debrecen in the Hajdú-Bihar County of Hungary. It is the second largest airport in Hungary, after Budapest and ahead of Hévíz–Balaton. Debrecen is the second largest city ... 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) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Debian-Installer
Debian-Installer is a system installer designed for the Debian Linux distribution. It originally appeared in the Debian release 3.1 (Sarge), released on June 6, 2005, although the first release of a Linux distribution that used it was Skolelinux (Debian-Edu) 1.0, released in June 2004. It is also one of two official installers available for Ubuntu, the other being called ''Ubiquity'' (itself based on parts of debian-installer) which was introduced in Ubuntu 6.06 (Dapper Drake). It makes use of ''cdebconf'' (a re-implementation of debconf in C) to perform configuration at install time. Originally, it was only supported under text-mode and ncurses. A graphical front-end (using GTK-DirectFB) was first introduced in Debian 4.0 (Etch). Since Debian 6.0 (Squeeze), it is used over Xorg instead of DirectFB. debootstrap debootstrap is software which allows installation of a Debian base system into a subdirectory of another, already installed operating system. It needs access to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Checkinstall
CheckInstall is a computer program for Unix-like operating systems which eases the installation and uninstallation of software compiled from source by making use of package management systems. After software compilation it can automatically generate a Slackware-, RPM-, or Debian-compatible package that can later be cleanly uninstalled through the appropriate package manager. CheckInstall monitors the installation phase of a normal software build process and notes the files that are added to the system. It then builds a package that contains these files, using additional information gathered from the user. Finally, the files installed by the original run are removed and the package is installed using the system package tools, so the package will be properly registered in the local installed packages database. The primary benefits provided by CheckInstall versus simply running make install are the ability to remove the package from the system using the system packaging tools, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
