where can I learn some terminal basics?

Question

I'm struggling with terminal commands, so where can i find a short course (basic stuff), and how you all do to remember so many commands?

Answer 1

Gabriel Rodrigues
I assume you are referring to the Linux command line.
See if this helps.
http://linuxcommand.org/tlcl.php
It will be more clear if you update the tags in your question to be more specific.

Answer 2

yes, I'm a beginner, so I'm focusing in learning the most important skills, but I'm confused, there are so many tools to learn ...
thanks for your help!