~/entwicklung 10> perl modulo.pl 
not % 2
Exiting subroutine via next at modulo.pl line 13.
1
not % 2
Exiting subroutine via next at modulo.pl line 13.
3
not % 2
Exiting subroutine via next at modulo.pl line 13.
5
not % 2
Exiting subroutine via next at modulo.pl line 13.
7
not % 2
Exiting subroutine via next at modulo.pl line 13.
9
not % 2
Exiting subroutine via next at modulo.pl line 13.