this post was submitted on 27 Oct 2024
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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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Can someone point me to a helpful beginners resource explaining some Linux basics? Like what is the difference between "distro", which is what, like Ubuntu, fedora, Debian (? Or is that a category of distro?) And desktop environment which is what, KDE, Lubuntu, gnome? Like I don't even know I have these categories right let alone understand why I'd pick one over another and what practical effects it will have- which apps will I/won't I be able to install, etc...

I'm not expecting anyone to answer these questions for me, but if you could point me to something already written, I'd appreciate it.

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[–] [email protected] 1 points 1 month ago

The package file, no matter if it's rpm, deb or something else, contains few things: Files for the software itself (executables, libraries, documentation, default configuration), depencies for other packages (as in to install software A you need also install library B) and installation scripts for the package. There's also some metadata, info for uninstallation and things like that, but that's mostly irrelevant for end user.

And then you need suitable package manager. Like dpkg for deb-packages, rpm (the program) for rpm-packages and so on. So that's why you mostly can't run Debian packages on Fedora or other way around. But with derivative distributions, like kubuntu and lubuntu, they use Ubuntu packages but have different default package selection and default configuration. Technically it would be possible to build a kubuntu package which depends on some library version which isn't on lubuntu and thus the packages wouldn't be compatible, but I'm almost certain that on those spesific two it's not the case.

And then there's things like Linux Mint, which originally based on Ubuntu but at least some point they had builds from both Debian and Ubuntu and thus they had different package selection. So there's a ton of nuances on this, but for the most part you can ignore them, just follow documentation for your spesific distribution and you're good to go.