In some environments, IceGrid Admin can be started by simply double-clicking on the IceGridGUI.jar file.
On all platforms, you can start IceGrid Admin from a terminal by typing:
java -jar path-to-IceGridGUI.jar
For example on a Linux system with an Ice RPM installation:
$ java -jar /usr/lib/Ice-3.2.1/IceGridGUI.jar
Page url: http://www.zeroc.com/doc/Ice-3.2.1/IceGridAdmin/index.html?starting_icegrid_admin.htm