Quit Frozen Application on Mac

ps -A | grep {application}
kill -9 {process-id}

How to Kill a Mac OS X Application That Just Won’t Quit

Ubuntu into OS X

I'm kind of looking to get Apple laptop. Want to buy laptop for myself and my nephew (as birthday present). On Saturday I found interesting article on Ycombinator and follow the instructions on the blog (Ubuntu into OS X. I like the setup so far.