The following example invokes a command file, BUILDER.COM, from
       DCL to produce a report on yachts by a specified builder.

       $ DATATRIEVE "@BUILDER"
       READY YACHTS
       REPORT YACHTS WITH BUILDER = *.BUILDER
       SET COLUMNS_PAGE = 70
       PRINT BOAT
       END_REPORT
       Enter BUILDER: ALBIN

                                                         11-Oct-1982
                                                         Page 1

                                     LENGTH
                                      OVER
       MANUFACTURER    MODEL    RIG   ALL   WEIGHT  BEAM   PRICE

        ALBIN        79        SLOOP   26    4,200   10   $17,900
        ALBIN        BALLAD    SLOOP   30    7,276   10   $27,500
        ALBIN        VEGA      SLOOP   27    5,070   08   $18,600

       $