The DCL command DATATRIEVE starts a DEC DATATRIEVE session. This
       DCL command lets you specify several optional qualifiers that let
       you customize your DEC DATATRIEVE session.

       Format

                     [             {DECWINDOWS      } ]
                     [ /INTERFACE= {                } ]
         DATATRIEVE  [             {CHARACTER_CELL  } ] ["DATATRIEVE"]
                     [ /[NO]DEBUG                     ]
                     [ /VARIANT=image-suffix          ]
                     [                                ]