I’ve heard that those who can’t remember history are condemned to repeat it but for Unix users, repeating history is not only advantageous, it’s something of a skill. When working on the command line, ...

Unix is among the oldest and most reliable operating systems. Developed in the late 1960s and early '70s at AT&T's Bell Laboratories, Unix was never seen as a cash cow for Ma Bell. In fact, AT&T ...