diagfi10.nc        
diagfi11.nc        
diagfi12.nc        

515              ! Starting sol to use in the output file?
sol              ! output timescale ("sol" or "ls")
tsurf            
ps


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ABOVE is the list of inputs to be fed to "concatnc.e" if you don't want
to reply directly to the program: 

1) List of N files to be read  (N lines)
2) blank line at the end
3) Starting sol of the output file?
(or a blank if you want to use the first file's
 starting sol = time(1)+controle(4) )
4) Output timescale ("sol" or "ls")
5) List of X variables to be kept (X lines) or 'all'
6) blank line at the end

The use is : 
> concatnc.e < concatnc.def