Amazon.co.uk Review
This slim volume neither aims to teach its readers UNIX nor introduces them to the Mac, but rather to show how Apple has implemented UNIX. It's a fast read that assumes--as the title implies--rather a lot of UNIX knowledge. With that requirement satisfied and this book in hand, you're likely to discover aspects of Aqua much more quickly than you otherwise would have.
The authors spend lots of time explaining how administrative tasks--such as managing groups, users and passwords--are handled in the Mac OS environment. They document netinfo fully, and call attention to its limitations (such as its inability to create home directories for users) by explaining how to do the job on the command line. They also cover C programming in the Darwin universe at greater length than any other book, providing explicit instructions for such important tasks as creating header files and linking static libraries. A guide to the command line (they call the reference section "The Missing Manpages") provides good value at this book's conclusion. --David Wall, Amazon.com
