The O'Reilly book (Learning Unix for OS X) is decent, but it doesn't really get into OS X-specific things. It doesn't even cover Homebrew. IIRC the only exception is a section on the md* commands ...

The commands below include basic Unix commands such as ls, cat, cp, mv, grep, etc. We will also talk about some of the shortcuts that can help you take control of your operating system faster and ...

Get started with Bash, Unix pipes, directory navigation, sudo, Nano, and other command-line essentials ...

After two and a half decades of working with Unix, I’ve seen a lot of change in my favorite OS and, at the same time, retained a number of favorite commands that continue to keep my job as a ...

Need a jump start on Unix networking? Whether you're working on your home network or setting up systems at work, here are some basic Unix networking commands and insights that might prove helpful.