>>24
Back when UNIX was new, if you bought a server you did indeed get a book. A book of documentation on how to use the command-line.
These days, a Windows command prompt might not give you any help (Microsoft is not big on the whole 'support' concept), but all UNIX-flavored desktops come with an electronic manual. It's called 'man pages' for short.
There's no point in shipping physical documentation for it with new PCs because 0.1% of the people who buy computers actually use the command-line. If you actually want to use the command-line, you get a book (or use the internet, since it's, you know, 2010.)