close terminal process without confirmation

Hey guys,

I'm dutch so, sorry if my english isn't very good.

I would like to let my mac startup and close itself without doing anything. And then it needs to open my my minecraft server (terminal). I know how to do this. It's starts up very well but it can't close down because you need to confirm that you want to close the terminal process. So the question is: How to disable the confirmation?

Thanks

Pieter-Jan