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Verbose.

grib_copy examples

1. To copy only the pressure levels from a file

   Code Block
   > grib_copy -w levtype=pl ../data/tigge_pf_ecmwf.grib2 out.grib

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2. To copy only the fields that are not on pressure levels from a file

   Code Block
   > grib_copy -w levtype!=pl ../data/tigge_pf_ecmwf.grib2 out.grib

1. To copy only the first three fields from a file

   Code Block
   > grib_copy -w count=1/2/3 ../data/tigge_pf_ecmwf.grib2 out.grib

1. A grib_file with multi field messages can be converted in single field messages with a simple grib_copy.

   Code Block
   > grib_copy multi.grib simple.grib

1. Use the square brackets to insert the value of a key in the name of the output file (This is a good way to split a large GRIB file)

   Code Block
   > grib_copy in.grib 'out_[shortName].grib'

   Note: we need to quote the name of the output so the shell does not interpret the square brackets

1. To copy fields whose typeOfLevel is either 'surface' or 'meanSea'

   Code Block
   > grib_copy -w typeOfLevel=surface/meanSea orig.grib out.grib

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2. To copy selected fields and apply sorting (sorted by level in ascending order)

   Code Block
   > grib_copy -w typeOfLevel=heightAboveGround -B'level:i asc' tigge_af_ecmwf.grib2 out.grib

   Note: we need to specify the ':i' to get a numerical sort. By default values are sorted as strings so a level of 100 would come before 20!

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