this post was submitted on 22 Nov 2023
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Linux
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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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Reminds me of the test server shenanigans I had at an old job versus a colleague. All in fun. Nothing in production.
One was the faux Bash shell that kind of worked OK until you pushed it or tried to do anything fancy. It was the default shell for the user called "root", but that wasn't the UID 0 user. It had been, but I renamed it. Then created a new "root" with a different UID. Of course, the faux shell would tell "root" that it was UID 0.
The other was the simple background loop that would detect any rival admin sessions and SIGHUP their shell process. First user on the box to run that pretty much had free reign, and everyone else was logged off instantly.