this post was submitted on 28 Jul 2021
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Linux
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From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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It’s the source (code) of a package. To install it, you still need to create/download a distribution specific specs file (it’s called a PKGBUILD on Arch Linux for example).
This distribution specific specs file for an application (the PKGBUILD on Arch) is a text file describing where to find and download the source from (where on the internet this tar.gz is located). It also describes what the program’s dependencies (other programs it requires to run) are, (such as git to be able to download the sources, or gnutar to unpack them).
The package manager (pacman for Arch, apt for Debian) each can read and understand only a specs file written exclusively for that one package manager (distribution), read this specs file and installs the software.