9.0;prfd (prf_display), revision 9.0, 85/03/18 PRFD (PRF_DISPLAY) -- Invoke menu-based PRF. usage: PRFD FORMAT PRFD PRFD invokes the menu-based version of the PRF (PRINT_FILE) command. This interactive version runs a graphics interface inside the process window in which PRFD was invoked. You control the operation of PRFD by pointing the cursor at a desired menu item and pressing <M1> (if you have a mouse) or <F1> or the space bar if you do not have a mouse. Internal help is available by pointing at a menu item and pressing the <HELP> key (R6S). PRFD requires no arguments or options on the Shell command line. To exit PRFD and return to the Shell, select the "QUIT" menu item. PRFD performs exactly the same functions as the command-line based PRF. Type HELP PRF for complete information on those various functions.