usage: remap [-hx][-c file][-r|w|f (file_in)] 
  where:
         -h - print this information
         -c - use (file) as a control file instead of (.grid) by default
         -x - no X-display window
         -f - use (file) as input and output data file
         -r - use (file) as an input data file
         -w - use (file) as an output data file
  Senya Basin, 1991-93.


(see Keithr's documentation for simple examples)