Beneath Mac OSR X's stunning graphical user interface (GUI) is the most powerful operating system ever created: UNIXR. With unmatched clarity and insight, this book explains UNIX for the Mac OS X usergiving you total control over your system, so you can get more done, faster. Building on Mark Sobell's highly praised A Practical Guide to the UNIX System, it delivers comprehensive guidance on the UNIX command line tools every user, administrator, and developer needs to mastertogether with the world's best day-to-day UNIX reference.This book is packed with hundreds of high-quality examples. From networking and system utilities to shells and programming, this is UNIX from the ground upboth the "whys" and the "hows"for every Mac user. You'll understand the relationships between GUI tools and their command line counterparts. Need instant answers? Don't bother with confusing online "manual pages": rely on this book's example-rich, quick-access, 236-page command reference!"