i'm a newbie
 

hi ,
i'm a newbie in linux , and i would like to have some links from where i can get the essential linux commands .
thanks in advance.

First of all please use a more meaningful subject when posting messages here.

As for ressources for newbies, try:
http://dsl.org/cookbook
http://www.linuxnewbie.org
http://www.linux-tips.net
http://www.tldp.org
http://www.yolinux.com/TUTORIALS/

And maybe www.kernelnewbies.org ;)