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Where clause. Set is only executed for grib BUFR messages matching all the key/value constraints. If a grib BUFR message does not match the constraints it is copied unchanged to the output_gribbufr_file. This behaviour can be changed setting the option -S. For each key a string (key:s), a double (key:d) or an integer (key:i) type can be defined. Default type is string. Note: only one -w clause is allowed.
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Does not fail when the message has wrong length
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Strict. Only grib messages matching all the constraints are copied to the output file
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