zte merit z990g rooted, needing advice

view story

http://androidforums.com – So I rooted my device and since Ive already established discontinuance with my service provider, Id like to futher explore it and my su privilages :) I've installed a terminal emulator and would like to axcess my z990g completely and learn to write scripts, but seeing as Im new to all of this, I require assistance. Could someone give a complete list of su commands, explain their purpose, and how to input them (including where & what is to be entered to axcess my sim network lock) and how to write scripts? The phone is no longer activated nor used for anything other than to play (General)