sub jah {
        while (my $d = shift) {
             print "$d\n";
        }
}
@_ = qw(foo bar bat);
jah(); # produces no output
jah(qw(foo bar bat)); # produces output

##</code><code>##

perl -e 'print "How sweet does a rose smell? "; chomp ($n = <STDIN>); $rose = "smells sweet to degree $n"; *other_name = *rose; print "$other_name\n"'