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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.
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.
An online edition of the Ubuntu Software Center was released, the Ubuntu Apps Directory. The Web store shows the same content as the Software Center application, with a download button that opens the application if running Ubuntu or a link to download the Ubuntu operating system installer if running a different operating system. [9]
Nix package manager: Nix is a package manager for Linux and other Unix-like systems that makes package management reliable and reproducible. It provides atomic upgrades and rollbacks, side-by-side installation of multiple versions of a package, multi-user package management and easy setup of build environments;
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] [9]
Advanced Package Tool (APT) is a free-software user interface that works with core libraries to handle the installation and removal of software on Debian and Debian-based Linux distributions. [4] APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of software ...
A file archive (the payload), which usually is in cpio format, compressed with gzip. The rpm2cpio tool enables retrieval of the cpio file without needing to install the RPM package. [18] The Linux Standard Base requires the use of gzip, but Fedora 30 packages are xz-compressed and Fedora 31 packages might be zstd-compressed. [19]
Primary hierarchy root and root directory of the entire file system hierarchy. /bin: Essential command binaries that need to be available in single-user mode, including to bring up the system or repair it, [3] for all users (e.g., cat, ls, cp). /boot: Boot loader files (e.g., kernels, initrd). /dev