NirCmd - NirCmd is a small utility that allows you to do many useful tasks from command-line, without displaying any user interface: change your display settings, turn off your monitor, open the door of your CD-ROM drive, and more...
Flashlight - Control your Mac with a keystroke.
Yad - Yad (yet another dialog) is a fork of Zenity with many improvements, such as custom buttons...
Simple Flashlight - A clean flashlight with an extra bright display and customizable stroboscope.
Zenity - Zenity is a tool that allows you to display GTK dialog boxes in commandline and shell scripts.
MEEFF - MEEFF – Make Global Friends app allows users to learn the Korean language and increase their knowledge about Korean culture by making friends from Korea and engaging in live chat with them.