useful terminal commands

Hi all,

im trying to learn how to make the most out of the terminal.
I have sussed out pings, tracerts, netstats and how to send mail using telnet. Are there any other usefuls ones maybe telnet/pop3 commands that anyone could shed any light on.

many thanks

It's just Unix so perhaps a book on Unix from the library would be useful.

Like was sugested a book on unix would be helpful. You also search the net for unix commands. Here is a short list.

Unix Commands
Unix commands reference card
Basic Unix Commands

How bout this book? I've used this book...and it's helped me out a few times...I think it's fairly well written.

thankyou guys for all your help !!
will have a look at a couple of books !!

it all makes sence now why i wasnt getting much info, i was typing in terminal commands instead of unix ....

maybe one day the penny will drop!!

cheers once again