Read a variable in multiple NetCDF files, concatenate and write them to a single netcdf file.
% gpcat -v VAR [options] FILE1 FILE2...
-h, --help : print this message. -v var, --variable var : variable name (required). -s sfmt, --slice sfmt : slice,thinnng (optional). -o file, --output file : output filename (optional). : Default output filename is 'gphys.nc'.
2005/05/17 S Takehiro (created) 2005/08/10 S Takehiro (utilize internal function for printing help message) 2005/08/21 S Takehiro (global attributes copied to the output file) 2005/08/23 S Takehiro (common methods to gp* command moved to gpcommon.rb)