I accidentally untarred archive intended to be extracted in root directory, which among others included some files for /etc directory.
I went on to rm -rv ~/etc, but I quickly typed rm -rv /etc instead, and hit enter, while using a root account.
Quoting from Linux Hater’s Handbook, lovely read
EDIT: UNIX Haters, not Linux hater, my bad
LOL nice, I’ll have to check it out. :) Thanks!
… is it the “UNIX-Hater’s Handbook” from 1994 with a parody of “The Scream” on the cover?
Yup, that one. It’s also available here, sans cover - https://web.mit.edu/~simsong/www/ugh.pdf