[Wonders]

Well, Linux is free and it is open source. Mac OS X is not. You can't run OS X on you PC, you need to have Apple's computer. You can actually, but that is called: "Hackintosh" It's a cool name. That is the main difference. The commands in terminal are the same because they are both part of the UNIX (you should Google that). I hope that you will try Linux.

Sounds really promising, I will definitely consider taking a proper look at Linux.