Re: 19990312: netCDF version information

Hi Cathy!

> From: Catherine Cormack <address@hidden>
> Organization: RSI
> Keywords: 199903121807.LAA24164 netCDF version

In the above message, you wrote:

> Here I am doing Tech Support for RSI, and I have a question for you.  How do
> I find out what version  of the netcdf library was used to create a netcdf
> file?

It's not possible to discover that information.  The first 4 bytes of
the file should be "CDF1" -- but that doesn't tell you much.  The file
format hasn't changed for a decade or so and all versions of the netCDF
library support the identical file format.

> I have a customer trying to use our interface to hdf to read a netcdf
> file and we can't read it.  We think this may be a netcdf 2.4 file, and hdf
> uses netcdf 2.3 so I need to verify that this is indeed the case.  ncdump
> doesn't report what version of netcdf was used to create the file.  Do you
> have a utility that does?

If they're having a problem it isn't because the file format is
different.

--------
Steve Emmerson   <http://www.unidata.ucar.edu>