A single package can sometimes have hundreds of dependencies. These additional packages are called dependencies. In Linux, each package contains metadata detailing the additional packages that are required.
Its very common in almost any operating system for software to require other software to run. Most Linux distributions have their own unique repositories, sometimes separating out their cores packages into one while additional features are in others. A repository can contain a single package or thousands of packages. Repositories are simply the location where the packages are stored, commonly accessible via the internet. While a user can obtain package files through any method of file transfer, it is typical to use software repositories (also called repos) to obtain packages. These complexities include obtaining (downloading) the package, ensuring packages are upgraded with security and bug fixes, and maintaining all the dependencies for the software. While it’s relatively simple for a user to install a package file, there are other complexities to consider.
These packages are typically specific to a particular distribution and formatted in that distribution’s preferred package format, such as. Most software applications designed for Linux or Unix systems are distributed as packages, which are archives that contain the pre-compiled binary software files, installation scripts, configuration files, dependency requirements, and other details about the software. Core Concepts for Package Management Packages The purpose of this guide is to provide a solid understanding of package management in Linux and an overview of the most widely used package managers. In some cases, you may wish to go beyond these basic commands to install a particular version, search for previously installed packages, or perform other actions. These guides typically provide basic commands that utilize a package manager to install the package(s) corresponding to that software. Many guides within Linode’s documentation (and elsewhere online) require the installation of new software. Each Linux system typically contains thousands of packages, many of which are required dependencies for other packages. On Linux, software is typically built as a package, distributed through repositories, and managed on the end-user’s system through package managers.
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