>chcp
Active code page: 65001   # My machine use UTF-8 for the console.

>perl a.pl
δφόΔΦάί

>chcp 850
Active code page: 850     # It used to default to this.

>perl a.pl
δφόΔΦάί

>chcp 437
Active code page: 437     # Common in the US.

>perl a.pl
δφόΔΦάί

>perl a.pl >a

>perl -Mv5.14 -ne"say sprintf '%vX', $_" a
C3.A4.C3.B6.C3.BC.C3.84.C3.96.C3.9C.C3.9F.A   # UTF-8 of δφόΔΦάί