or download this
$N = $ARGV[0];
$n = $N =~ /^[AEIOU]/ ? $N : substr( $N, 1 );
...
printf( "%s, %s, bo-%s%s, Banana-fana fo-%s%s, Fee-fi-mo-%s%s, %s!",
( $N, $N, $a[0], $n, $a[1], $n, $a[2], $n, $N ) );
or download this
$N = $ARGV[0];
$n = $N =~ /^[AEIOU]/ ? $N : substr( $N, 1 );
...
$n = lc( $n =~ /^[BFM]/ ? substr( $n, 1 ) : $n );
printf( "%s, %s, bo-%s%s, Banana-fana fo-%s%s, Fee-fi-mo-%s%s, %s!\n",
( $N, $N, $a[0], $n, $a[1], $n, $a[2], $n, $N ) );