How do I access that basic command line tutorial man document?

Solution 1:

You are looking for the man intro. Just type

man intro  

This will open the first man intro section, the one that you are (I will stab a guess) most likely interested in. To view all man intro sections type

man -a intro

and you will be prompted to view them all, unless you decide to quit.

Solution 2:

man intro is the right answer here. But to be a bit more general, if you want to search all manpages for particular keywords, you can use man -wK.

In particular, you knew that the page you were looking for contained the word "baroque", which is a nice specific search term:

$ man -wK baroque
/usr/share/man/man1/intro.1.gz
/usr/share/man/man1/zshmodules.1.gz
$

If you want to jump directly to the manpages in the results, in turn, simply use man -K instead.

Note that the -K option is a brute-force search through all manpages, so can take some time. In my case it takes 20-25 seconds on my Ubuntu VM.