For now, we’re going to focus on UNIX permissions—that is, permissions on Mac, Linux, and FreeBSD systems (like FreeNAS), and start with just the basics. Why File Permissions Matter ...

If you are doing X11, for example, you can go low-level or pick any of a number of high-level libraries. The tutorial assumes you understand C and basic Linux programming. It has two sections, really.

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 ...

Much of our lives are spent learning new things and teaching others, and as far as Linux goes, the Linux Journal Web site is here to help you. If you'd like to write an article that covers a basic or ...