As we learned in the previous lesson, Linux comes from open source, and
in open source you often have many solutions for the same problem.
That's also true for getting help.
So which are the help systems?
Well, MAN is the primary source. We've been talking about it.
Info shows information for some commands.
This information is not organized in a very practical way, but if a command is showing that the real information is maintained
by info, you might want to copy and paste the info command that you find at the end of the main page.
We have also talked about Command help, which provides short usage overview.
Apart from that, a limited amount of information is available in usershare doc
that can contain additional information about commands and programs that you are using.
The big question which one of these are you going to use?
As for myself, I'm using Command help all the time because commands in
Linux have many, many options and it's impossible to memorize all of them.
If command help is not good enough and I need more detail, I'm using MAN and for the rest of
IT Info and user shared doc. I don't use them very often at all. I suggest you do the same.