this post was submitted on 13 Aug 2023
150 points (94.1% liked)
Linux
48413 readers
1518 users here now
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.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 5 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Not very practical, but good for understanding the OS: Everything is a file. Even your filesystem and harddrive is represented by a file (devicenode).
Back in the day, before things such as pulseaudio and equivalents became the norm, there was also such a file (it might still exist, idk) for your soundcard. By shoving the contents of a wav file directly into /dev/dsp, you could hear it as if it was played normally.
Unrelates to the above, in a terminal context it's very handy to learn the concepts of STDIN, STDOUT, and STDERR, and how to manipulate these. I won't go into it here, but whenever you see a bunch of commands strung together with redirects, < > | >>, that's usually for sending the output (STDOUT) of one command somewhere else, such as to the input STDIN to another command.