Hi,

Now i know the basic commands like ls, mod, chmod, installing software, burning cds..........etc. Now what else should i go on to learn? WHat else is there? SHould i buy a book? Any things that's common that i missed out?

thnx

There is a lot that you can do. Linux is (imho) the most powerful networking OS out there. Why don't you build a small web server. Install apache and php and play around with that. If you don't want to do that get some books on security. Keeping a machine secure is obviously important.

I've read several books on linux and I'd recomend anything in the Bible series (Red Hat Linux 7 Bible). Anything in the Unleashed series is an incredible resource (Linux Unleashed). Just do a search for them on amazon.com and you'll see. Each one of these books are well over 400 pages so there is lots more to learn.

Lastly don't neglect the FREE documentation that is available through the Linux Documentation Project (LDP: http://linuxdoc.org/)

Good luck!

if you are in programming environment take a look at source code, try to figure out how the things work. Compile/re-compile your kernel to suit your needs. Get a peace of hardware that is not working under linux and make it work ( like a winmodem , ok that was a joke winmodems are not hardware, I mean it is a peace of hardware, but it lacks the core specifications of real computer hardware), write your own scripts and so on.
If you are not that deep into programming, then ask yorself a question what do I need a computer for? Browse the net? Feel free. Playing games? Not every PC game will run under linux right now, maybe later.
It is all a matter of choice and habit. And probably you know all of this by now.