Ubuntu， an African word meaning “humanity to others，” is the hottest thing in Linux today. This down-and-dirty book shows you how they can blow away the default system settings and get Ubuntu to behave however you want. You’ll learn how to optimize its appearance， speed， usability， and security and get the low-down on hundreds of hacks such as running Ubuntu from a USB drive， installing it on a Mac， enabling multiple CPUs， and putting *s in menus and panels.