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An amazing directory: /proc
(lemmy.ml)
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this post was submitted on 20 Aug 2026
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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.
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Got to love UNIX's everything is a file.
ProcFS is from Plan9. https://en.wikipedia.org/wiki/Plan_9_from_Bell_Labs#/proc
Plan9 is worth a deep dive, but maybe not worth running. It is more UNIX than UNIX. (Also where UTF8 came from.)
I did not know that about plan9!
/procwas one of the things I missed most when I switched from daily driving linux to daily driving osx.Well that is retrograde of it.
Another cool thing from Plan9:
https://github.com/torvalds/linux/blob/master/Documentation/filesystems/9p.rst