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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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[–] ranzispa@mander.xyz 4 points 1 week ago

should be the number of hardware threads available on the system by default

No, not at all. That is a terrible default. I do work a lot on number churning and sometimes I have to test stuff on my own machine. Generally I tend to use a safe number such as 10, or if I need to do something very heavy I'll go to 1 less than the actual number of cores on the machine. I've been burned too many times by starting a calculation and then my machine stalls as that code is eating all CPU and all you can do is switch it off.