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Diagram showing an example file structure of a .deb file Frhed hex editor displaying the raw data of a Debian package. Prior to Debian 0.93, a package consisted of a file header and two concatenated gzip archives. [6] Since Debian 0.93, a deb package is implemented as an ar archive. [7] This archive contains three files in a specific order: [8 ...
update is used to resynchronize the package index files from their sources. The lists of available packages are fetched from the location(s) specified in /etc/apt/sources.list. For example, when using a Debian archive, this command retrieves and scans the Packages.gz files, so that information about new and updated packages is available.
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 ...
The following package management systems distribute the source code of their apps. Either the user must know how to compile the packages, or they come with a script that automates the compilation process. For example, in GoboLinux a recipe file contains information on how to download, unpack, compile and install a package using its Compile tool ...
Synaptic, an example of a package manager. A package manager or package-management system is a collection of software tools that automates the process of installing, upgrading, configuring, and removing computer programs for a computer in a consistent manner. [1] A package manager deals with packages, distributions of software and data in ...
dpkg-buildpackage is a control script that can be used to construct the package automatically. dpkg-distaddfile adds a file input to debian/files. dpkg-parsechangelog reads the changes file (changelog) of an unpacked Debian tree source and creates a conveniently prepared output with the information for those changes.
The dsc file, which is a text file with metadata, such as the names of all files constituting the source package and their SHA256 checksums. It also contains the signature of the creator of the source package. For example, a source package named foo with upstream version 1.2.3 and Debian revision 4 can consist of the following files:
Whereas packages are a single archive file in a well-defined format (ex. NuGet) that contain files appropriate for the package type (ex. DLL, PDB). [33] Many artifacts result from builds but other types are crucial as well. Packages are essentially one of two things: a library or an application. [34]