Other Help Topics :: making my first simple startup script

hello there i i have questions about making a shell script that will do much of the work for me like starting up network
at now i can only use command netcardconfig but i need to type and i want my script to enter it by it self.
other thing is to load a .dsl or uci file from a cdrom ...
other thing like unpack tar.gz and wget i can make my self