Online Help:

begin load loop derose tables 2 3 4 5 6 
end   load loop derose tables
Usage: /vol/vssp/local/trees/amma-4/linux/bin/ex_hop [options] 
   -optload () [] Load options from a file.  
   -optsave () [] Save options to a file.  
   -mm (FALSE) [FALSE] FALSE=use map, TRUE=make map
   -i (1) [1] input filename root for .tri/.vec/.map
   -o (2) [2] output filename root for .tri/.vec/.map
   -ol () [] output log file
   -ks (0.01) [0.01] Constant - spring 
   -kr (0) [0] Constant - representation 
   -kv (0) [0] Constant - vertices 
   -ov (FALSE) [FALSE] TRUE=optimize vectors
   -om (FALSE) [FALSE] TRUE=optimize mesh
   -help (TRUE) [FALSE] Print usage information. 

Dependancies:
   -i is compulsory.