Linux

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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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Noob Question Thread: Ask Any Questions About Linux! (lemmy.ml)

submitted 7 months ago by [email protected] to c/[email protected]

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I thought I'll make this thread for all of you out there who have questions but are afraid to ask them. This is your chance!

I'll try my best to answer any questions here, but I hope others in the community will contribute too!

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[–] [email protected] 2 points 7 months ago (1 children)

Not all. I've had apps install in opt, flatpaks install in var out of all places. Some apps install in /etc/share/applications

[–] [email protected] 1 points 7 months ago (1 children)

In /etc? Are you sure? /usr/share/applications has your system-wide .desktop files, (while .local/share/applications has user-level ones, kinda analogous to installing a program to AppData on Windows). And .desktop files could be interpreted at a high level as an "app", even though they're really just a simple description of how to advertise and launch an application from a GUI of some kind.

[–] [email protected] 1 points 7 months ago (1 children)

OK, that was wrong. I meant usr/share/applications. Still, more than one place.

[–] [email protected] 3 points 7 months ago

The actual executables shouldn't ever go in that folder though.

Typically packages installed through a package manager stick everything in their own folder in /usr/lib (for libs) and /usr/share (for any other data). Then they either put their executables directly in /usr/bin or symlink over to them.

That last part is usually what results in things not living in a consistent place. A package might have something that qualifies as both an executable and a lib, so they store it in their lib folder, but symlink to it from bin. Or they might not have a lib folder, and just put everything in their share folder and symlink to it from bin.