module load wgrib2/2.0.8
(1) wgrib2 2012010100.f000.grib2 -netcdf test.nc
(2)
(2a) wgrib2 2012010100.f000.grib2 -for 5:12 -grib new.2012010100.f000.grib2
(2b) wgrib2 new.2012010100.f000.grib2 -netcdf test.nc

