GENERIC COMMAND INTERPRETER PROGRAMS HAVE BEEN WRITTEN FOR ROBOT CONTROLLERS AT SANDIA NATIONAL LABORATORIES (SNL). EACH INTERPRETER PROGRAM RESIDES ON A ROBOT CONTROLLER AND INTERFACES THE CONTROLLER WITH A SUPERVISORY PROGRAM ON ANOTHER (HOST) COMPUTER. THESE INTERPRETER PROGRAM MONITORS WAIT, AND MONITOR A COMMUNITY LINE FOR COMMANDS FROM THE SUPERVISORY PROGRAM. THESE MONITORS ARE DESIGNED TO INTERFACE WITH THE OBJECT-ORIENTED SOFTWARE STRUCTURE OF THE SUPERVISORY PROGRAMS. THE FUNCTIONS OF THE MONITOR PROGRAMS ARE WRITTEN IN EACH ROBOT CONTROLLER'S NATIVE LANGUAGE BUT REFLECT THE OBJECT-ORIENTED FUNCTIONS OF THE SUPERVISOR PROGRAMS. THESE FUNCTIONS AND OTHER SPECIFICS OF THE MONITOR PROGRAMS WRITTEN FOR THESE DIFFERENT ROBOTS AT SNL ARE DISCUSSED.