.COMPILE: Compile a program.

.CONTINUE: Continues execution of a stopped program.

.EDIT: Opens a file in the IDL Workbench editor.

.FULL_RESET_SESSION: Reset the session and unload sharable libraries.

.GO: Execute a previously-compiled $MAIN$ program.

.OUT: Continues execution until the current routine returns.

.RESET_SESSION: Reset the IDL state, delete all variables and clear compiled code.

.RETURN: Continue execution until RETURN statement.

.RNEW: Erases $MAIN$ program variables and then execute .RUN.

.RUN: Compile and execute IDL commands from a file or the keyboard.

.SKIP: Skip over the next statement or statements.

.STEP: Executes one or more statements.

.STEPOVER: Executes one or more statements but do not step into routines.

.TRACE: Continue execution, display each line of code as it is executed.