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When packages are being installed, debconf asks the user questions which determine the contents of the system-wide configuration files associated with that package. After package installation, it is possible to go back and change the configuration of a package by using the dpkg-reconfigure program, or another program such as Synaptic.
A major feature of APT is the way it calls dpkg — it does topological sorting of the list of packages to be installed or removed and calls dpkg in the best possible sequence. In some cases, it utilizes the --force options of dpkg. However, it only does this when it is unable to calculate how to avoid the reason dpkg requires the action to be ...
dpkg is used to install, remove, and provide information about .deb packages. dpkg (Debian Package) itself is a low-level tool. APT (Advanced Package Tool), a higher-level tool, is more commonly used than dpkg as it can fetch packages from remote locations and deal with complex package relations, such as dependency resolution.
dpkg: Originally used by Debian and now by Ubuntu. Uses the .deb format and was the first to have a widely known dependency resolution tool, APT. The ncurses-based front-end for APT, aptitude, is also a popular package manager for Debian-based systems; Entropy: Used by and created for Sabayon Linux.
GDebi can install a local .deb file via the command line like the dpkg command, but with access to repositories to resolve dependencies. [123] Other graphical front-ends for APT include Software Center , [ 124 ] Synaptic [ 125 ] and Apper .
Some package managers, such as Debian's dpkg, allow configuration during installation. In other situations, it is desirable to install packages with the default configuration and then overwrite this configuration, for instance, in headless installations to a large number of computers. This kind of pre-configured installation is also supported ...
The first patient in the U.S. was hospitalized with "severe" bird flu. Here's what you should know about symptoms, according to an infectious disease expert.
A source package is created using the dpkg-buildpackage tool or its wrapper debuild. When invoked to create a source package, dpkg-buildpackage calls the maintainer's rules to clean the source tree of any intermediate files, does various sanity checks, and finally, signs the dsc file with the packager's key using the debsign utility.