pro HELPSY ;+ ; NAME: ; HELPSY ; ; PURPOSE: ; HELPSY prints the values of all of the system variables. ; This procedure was built-in under version 1 VMS ; IDL, and is provided in this form to help users of that version ; adapt to version 2. ; ; CALLING SEQUENCE: ; HELPSY ; ; INPUT: ; None. ; ; OUTPUT: ; The the values of all of the system variables are printed. ; ; RESTRICTIONS: ; None. ; ; REVISION HISTORY: ; 10 January 1990 ;- on_error,2 ;Return to caller if an error occurs HELP, /SYSTEM_VARIABLES end