> I think that if you took a Unix user from the early 1990s and dropped them into a 2022 Unix system via SSH, they wouldn't find much that was majorly different in the experience. Admittedly, a system administrator would have a different experience; practices and tools have shifted drastically (for the better).
Indeed, I would say that it's true. I have a reference book about Unix & GNU/Linux wrote on mid/late 90's, and roughly 80% of it keeps applying to modern Linux. ps keeps being ps. Same thing with bg, chmod, etc. What really got outdated on these book, was X11 configuration (thanks!), referring to an editor called "joe", and a few bits of how install a Red Hat Linux 5.1
Indeed, I would say that it's true. I have a reference book about Unix & GNU/Linux wrote on mid/late 90's, and roughly 80% of it keeps applying to modern Linux. ps keeps being ps. Same thing with bg, chmod, etc. What really got outdated on these book, was X11 configuration (thanks!), referring to an editor called "joe", and a few bits of how install a Red Hat Linux 5.1