This page contains simple commands that I use to handle NetCDF data in different tools. This page will be updated as I will stumble upon on to new commands.
See data that nc file contains: ncdump file.nc
See only header of the data: ncdump -c file.nc (great for if you only want see the file information)
Compress nc data by removing unlimited time dimension and make file smaller: nccopy -u -s -d6 file.nc file_compressed.nc
Concatenate all nc files in a directory: cdo cat *.nc merged_file.nc
Shift Longitude of data from 0:360 to -180:180: cdo sellonlatbox,-180,180,-90,90 input.nc output.nc
Convert grib to nc: cdo -f nc copy file.grb file.nc
Merge datasets with the same number of timesteps and different variables in each dataset: cdo merge infile1.nc infile2.nc infile3.nc outfile.nc
Convert variable ts by subtraction from K to C: cdo expr,’var1=ts-273.15;’ ifile.nc ofile.nc