Here’s what Apple Computer had to say in their latest Apple Developer Connection newsletter:
“Learning Unix for Mac OS X Panther” Released by O’Reilly
This compact book by Dave Taylor and Brian Jepson provides a
user-friendly tour of the Mac’s UNIX base for the uninitiated.
Readers can safely explore Terminal and familiarize themselves with
the command line, learning about the hundreds of UNIX programs that
come with the Mac.