WTF? Asking stupid questions isn't enough, you need to repeat them also because you didn't get the answer you wanted?
The correct answer to YOUR question is - You don't, you have no clue what the fuck you are doing and are going to get yourself in trouble. GO FUCKING GOOGLE THESE STUPID FUCKING QUESTIONS.
lol nice catch ...
Here is the free online book for nmap
https://nmap.org/book/toc.html Also there is a very nice WIKI here
https://evilzone.org/wiki//index.php/Main_Page If you spend sometime GOOGLING what you are trying to do you will find your answers and more. there are tons of blogs , forums and youtube videos on hacking . The information is endless really.
But you will only learn if you put some effort into it , TRIAL AND ERROR , you learn more from failing a few times..
TRY HARDER before you ask a question and show that you have put some effort into what you are doing then maybe you will get more help and better responses from members.