this post was submitted on 16 Dec 2024
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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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The name is constructed from two parts:
ls: listusb: usbIt lists usb devices that your machine (/kernel) knows has been connected; they may not necessarily be usable.
E.g. I have some sound output device connected via USB to one machine. On most of my machines I've switched from pulseaudio to pipewire¹, and I figured I'd bring that machine closer to the others so there's less variance. Unfortunately the sound output device didn't want to work with pipewire. The problem manifested as no sound and pipewire not listing the device.
lsusbhelped me know that the machine at the very least recognized the device, but wasn't currently able to use it. (It did actually also show up as an error indmesg -H, but reinstating pulseaudio let the device work again as normally. So now I just have to live with a situation where some machines use pipewire because ~bluetooth~ and others use pulseaudio because … usb?¹)¹ There's a memory of ALSA vs OSS I didn't want to be reminded of
Ah thanks, I wonder if GUI tools for this is useful. Especially if it is for system diagnostics.
I think I wouldn't find it particularly useful, as I'm used to the quasi-programming I can do in a terminal. The shell commands take some time & effort to learn, but once you're over that hump, being able to extract and compose information is really good. The primary shell tools I'd miss in a gui are
|,jq,awk,sedandgrep/rg, as well asfor,if,while, variables, and having everything in one lightweight window.