Of course the Mac was created in part as sort of a backlash against the command line interface of DOS (typing long strings of complicated computing commands, not pointing and clicking with a mouse like we're used to now), though Mac OS X now boasts a Unix Shell terminal with its own command line interface.

FORBES: Dual-Personality Macs

Sqlmap, also free and billed as an off-the-shelf, penetration-testing tool, uses a command-line interface and requires a little more programming experience to use.

FORBES: Now Anyone Can Hack A Website Thanks To Clever, Free Programs

BeoSound 5 lets you command all of your music, no matter where it's stored, from one intuitive interface.

ENGADGET: Bang & Olufsen announces Spotify partnership, brings streaming integration to BeoSound 5

This all-new configurator software for the Razer Nostromo comes with an improved user-friendly interface that belies its advanced macro programming capabilities, allowing gamers to conveniently customize all the buttons with any game command to open up a massive repertoire of commands and combinations right under their fingertips.

ENGADGET: Razer Nostromo gaming keypad supplants Belkin's n52te Speedpad, does it proud