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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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What are some of your most useful or favorite terminal commands? (piefed.social)

submitted 1 week ago by marighost@piefed.social to c/linux@lemmy.ml

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I've been setting up a new Proxmox server and messing around with VMs, and wanted to know what kind of useful commands I'm missing out on. Bonus points for a little explainer.

Journalctl | grep -C 10 'foo' was useful for me when I needed to troubleshoot some fstab mount fuckery on boot. It pipes Journalctl (boot logs) into grep to find 'foo', and prints 10 lines before and after each instance of 'foo'.

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[–] mat@jlai.lu 9 points 1 week ago (1 children)

I'd say that journalctl is not only boot, but every service that runs on the computer has its logs collected through it, so you can use it as journalctl --grep="your regex". You can also add -k to check kernel logs, -b -n to check nth precedent boot or -b n to check the absolute nth boot. There is a lot that you can check with it and it is quite nice :)

Otherwise, I like eza as an ls replacement, or batcat as a human friendly cat

[–] smiletolerantly@awful.systems 11 points 1 week ago (2 children)

Don't forget the almighty:

journalctl -fu <servicename>

And yes, I am always reading that as "fuck you, service".

[–] wheezy@lemmy.ml 2 points 1 week ago

Well now I'm aliasing this to jofu and remembering it as "jerk off fuck you"

[–] mat@jlai.lu 1 points 1 week ago

I love it XD