GBDIAG

    	GBDIAG allows for detailed GRIB message section information, 
    byte-by-byte, to be printed out for selected GRIB messages.
    Simply list those GRIB sections to be examined (IDS, PDS, GDS,
    BMS, BDS, END or ALL for all sections), e.g., pds;gds.  
    Selected GRIB messages for examination may also be identified by 
    number in list and/or range format, e.g., 2;4;5-9, immediately
    following the section specification separated by a "|".
    For example, GBDIAG=pds;gds|2;4;6-12 .  Please note that the BMS
    section will be listed only if it exists and that the sections
    BDS and END will be listed only if the GRIB data is actually
    being decoded and written into the GEMPAK file.