This book came together with the invaluable assistance of a number of very talented and supportive people. Thanks to Clifford Colby for his continued confidence and support. Rebecca Gulick was a delight to work with and helped tremendously in pulling the various pieces together. Elle Yoko Suzuki was not only great as a proofreader, but provided super technical feedback as well. Liz Welch was really helpful as copy editor. Myrna Vladic and Deb Roberti did a great job in production, even with our special needs. And, yet again, Steve Talley’s careful attention to detail and deep knowledge of the idiosyncrasies of Unix helped iron out technical rough spots. Thanks, all!