For all UNIX systems (Mac OS X, Linux, and FreeBSD—which is what FreeNAS uses), permissions work in generally the same way. Each file and folder has an owner and a group assigned to it, which ...

I'm posting this here because OS X is my main unix system, though I also use some linux stuff (synology and a ubuntu virtual machine in my mac). I've dabbled with unix off and on for more than 20 ...

It pays to know these Unix basics considering there is often a Unix/Unix-like OS somewhere in the abstraction hierarchy. If that layer is unsound, the whole edifice risks collapse.

If you're not yet comfortable with writing scripts on Unix and Linux systems, this post might get you off to a healthy start.

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 first article discusses the basics of UNIX printing systems and how they revolve “almost entirely around the PostScript page description language”. Author Stephane Peter then shows how these ...