December 2018
Beginner
826 pages
22h 54m
English
Take a look at the old Unix programs and conventions, and you'll be surprised by how many of them have survived till the modern day.
GNU is not Unix, though, so why do Linux systems also have uname? The answer is, because it's Unix-like, and a lot of the commands and conventions pioneered by Unix were rewritten by the GNU operating system and free software movement, for the convenience of familiarity.