grib_filter

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Rules syntax grib_filter • write; - Writes the current message to the output file defined in the command line with the option –o ( grib_filter –o outfile rules_file grib_file). - If the –o option is not specified, the default value “filter.out” is used. • write “filename_[key]”; - Writes the current message to the file “filename_[key]” where the key in square brackets is replaced with its value retrieved from the message. - Important “side effect” is that if two messages have different values for key they are also written to different files. Slide 10 COM GRIB API, ECMWF 26-Feb, 01-Mar 2013 ©ECMWF Slide 10
Example 4 grib_filter # Creating multiple files write “[centre]_[dataDate]_[step].grib[edition]”; > grib_filter rule.filter x.grib1 > ls ecmf_20080213_0.grib1 ecmf_20080213_6.grib1 ecmf_20080213_12.grib1 ecmf_20080213_24.grib1 Slide 11 COM GRIB API, ECMWF 26-Feb, 01-Mar 2013 ©ECMWF Slide 11
Page 1 and 2: grib_filter GRIB API: grib_filter X
Page 3 and 4: Introduction grib_filter • GRIB A
Page 5 and 6: Usage grib_filter grib_filter rules
Page 7 and 8: Example 1 grib_filter # A simple pr
Page 9: Example 3 grib_filter # three colum
Page 13 and 14: Example 5 grib_filter append; > gri
Page 15 and 16: Example 6 grib_filter set edition =
Page 17 and 18: Rules syntax grib_filter • transi
Page 19 and 20: Practicals grib_filter To get the m
Page 21 and 22: Example 9 grib_filter File rule.fil
Page 23 and 24: Example 10 grib_filter print "proce
Page 25 and 26: Practicals grib_filter 1. Change th
Page 27: grib_filter Questions ? Slide 27 CO

grib_filter

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