Lame of me I know, but I could only come up with the following =20
immediately, and yes, it's quite obfuscated. Anyway, enjoy:


#!/usr/bin/env ruby -KU

$><<   [ DATA.read.strip! ] <<
[]<<<<=A7[ %r [\ ]w\w+ iomx ] <<
                               world
=A7
                               ?!.chr
__END__
                               hello