Online Help:

Usage: /vol/vssp/local/trees/amma-4/linux/bin/exnear [options] 
   -optload () [] Load options from a file.  
   -optsave () [] Save options to a file.  
   -i (1.tri) [1.tri] input    filename .tri
   -v (1.vec) [1.vec] input    filename .vec
   -m (1.map) [1.map] output   map file
   -n (50) [50] number of bins 
   -t (0) [0] trace printout 
   -e (FALSE) [FALSE] use exhaustive search
   -s (FALSE) [FALSE] Show some statistics
   -b (0) [0] Do a histogram with £ bins 
   -robust (FALSE) [FALSE] Remove all points further than 3 MAD - overwrites the .vec file!!!
   -help (TRUE) [FALSE] Print usage information.