Convert a grib2 file to grib1 format
cnvgrib2to1 <grib2filename> <grib1filename>
Convert a GRIB2 format file to a GRIB1 format.
GRIB is a file format defined for meteorological data defined by the WMO (World Meteorological Organisation).
Jeffrey Whittaker <jeffrey.s.whitaker@noaa.gov> wrote the code.
Alastair McKinstry <mckinstry@debian.org> wrote this man page