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Of course, my first response is to suggest that you upgrade to a more recent version of netcdf-c. But ignoring that. Did you try renaming the file wrfoutd02 to wrfoutd02.nc? > > We recently installed NETCDF library version 4.1.3 on a CENTOS 7 machine > to help with running WRF model computations. It works well and when we use > ncdump it extracts all of the data fine with any ncdump option command. > > However when we try to extract the netCDF file on another machine running > CENTOS 6 with netcdf library version 4.1.1 we get the following error. > > ncdump -h wrfoutd02 > ncdump: wrfoutd02: Invalid argument > > A sample of the NetCDF file can be downloaded from the following link > > http://www.barbadosweather.org/Uploads/pkucera/wrfout_d01_2018-03-25_12:00:00 > > Please note that the machine that gives the error extracts other types of > *.nc files without an issue. > > Some help on this error would be greatly appreciated. > > Regards > Mr.Sabu Best > BMS Meteorologist > > =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: TMT-541211 Department: Support netCDF Priority: Critical Status: Open =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.