SikuliX = Sikuli IDE + Sikuli Script So, Sikuli Script = SikuliX - Sikuli IDE
Sikuli automates anything you see on the screen. It uses image recognition to identify and control GUI components. It is useful when there is no easy access to a GUI's internal or source code.
Sikuli was an open-source research project at the User Interface Design Group at MIT.
For details: http://www.sikuli.org/