This formula will yield the distance between 2 coordinates.
Can this be done in UNIX?? Anyone knows how???

Lat1 = 43.335
Lon1 = -70.9884

Lat2 = 43.4829
Lon2 = -71.246

distance =3444*ACOS(COS(RADIANS(90-(Lat1)))*COS(RADIANS(90-(Lat2)))+SIN(RADIANS(90-(Lat1)))*SIN(RADIANS(90-(Lat2)))*COS(RADIANS((Lon1-Lon2))))

distance = 14.3376283 miles