O’Reilly has released “Learning Unix for Mac OS X, Second Edition” (US$19.95), authored by Dave Taylor and Brian Jepson. The compact book, which has been updated to cover Mac OS X 10.2 (Jaguar), provides “a user-friendly tour of the Mac’s new Unix base. As readers explore Terminal and familiarize themselves with the command line, they’ll also learn about the hundreds of Unix programs that come with their Mac and begin to understand the power and flexibility of Unix.” The new edition will show readers how to customize the shell environment, manage files and directories, print from the Unix command line, edit and create files with the vi editor, perform remote logins, access internet functions, understand pipes and filters, use background processing, and use Fink, an easy way to install open source Unix software on Mac OS X.