On Tue, 12 Mar 2002, Alejandro G. Bedoya wrote: > es: L=EDnea de MIENTRAS que no haya en REAL, deber=E1 de agregarse al R= EAL. > El pseudo c=F3digo r=E1pido es... while (<REAL>) { $REAL{$_}=3D1 } while (<MIENTRAS>) { agregas if ! exists $REAL{$_} } O tal vez usar GDBM. Saludos, To=F1o --- It is difficult to soar with the eagles when you work with turkeys.