I am trying to use terminal as much
as possible like opening internet pages from terminals etc. But I am
stuck in minimizing windows. I opened pdf documents using evince. But,
now I want to minimize them and eventually close them. But, I cant seem
to find any command.

There is nothing available in "man evince" as well. But, I must admit
that I am terribly poor in interpreting those man commands.

But, I would be grateful if you can help me out on that. I searched on
the internet but nothing regarding this. I would appreciate that you do
not directly tell me the command, but instead direct me on how ti find
it within linux documentation. This would help me learn more.

Also, is there any command for "show desktop" in linux. I read on the
internet that there is none?