cnvgrib2to1 <grib2filename> <grib1filename>
This command (from the pygrib package) converts a GRIB2 formatted file to a GRIB1 formatted file.
GRIB is a file format defined for meteorological data defined by the WMO (World Meteorological Organisation). It is commonly used in meteorology to store historical and forecast weather data.
if OK or if the program did not start due to a wrong number of commandline arguments
if the program failed during the conversion stage
Jeffrey Whitaker <email@example.com> wrote the code.
Alastair McKinstry <firstname.lastname@example.org> wrote this man page
Related tools are cnvgrib1to2, grib_list and grib_repack which are all based on the more general python module pygrib and the c-library gribapi