Hi,
Astonk, I am not sure what you are asking for. If you are asking for the answers to those questions you should have a look at our
rules. You will see that we aren't able to help you with homework, or anything that appears to be homework.
If you need help with the man pages then that is an easy answer. You just need to type "man ls" without "" and then you will get the description of what the command does.
I hope that you understand where we are coming from. While we are here to help people we aren't here to learn for you. The best way to learn is to do the task yourself, not be able to follow the directions of others.
Cheers!