"man bc" states that "bc" can be compiled to support readline library. This could be very handy.. why cygwin's "bc" does not? Problems specific to Cygwin or simply it is not default and no one felt it necessary? Lapo -- Lapo Luchini lapo@lapo.it (PGP & X.509 keys available) http://www.lapo.it (ICQ UIN: 529796)