Query variable names of NetCDF files

[Ismael Núñez-Riboni]

Hi everybody,

I'm new to the list and having a hard time trying to find out how to 
query the variable names of netCDF files with octave... So far I have 
being do it first with ncview but then it happens that I try to read a 
variable name from a file (open with cid = netcdf(myfilename,'r')) which 
does not contain that variable and my program crashes... Can somebody 
help? It's surely an easy one... Thanks in advance.

Cheers, Ismael.