this post was submitted on 22 Jan 2024
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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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Found out the hard way that if you edit /etc/sudoers with anything other than visudo you best be absolutely sure the syntax is correct, otherwise sudo will refuse to read it and you'll be locked out.
Also learned to add -rf to the rm command at the end, after I re-read it to make sure it does what it should do. Something like rm /path -rf instead of rm -fr /path. That protects you from your fat fingers hitting the enter key half way through.
Been there with sudo. Fortunately,
su
still works, as well as going to another tty and logging in as root. Well, as long as the root login is enabled; otherwise that old hack withinit=/bin/bash
may work, unless you've prohibited editing kernel cmdline in the boitloader or decided on efistubIIRC the root account was disabled (with no password), so I resorted to my trusty SystemRescueCD pen to fix things. Never leave home without it.