Mmm... but does it have to be interpreted? I heard there was a compiler for Perl somewhere. Interpreted, it would have a lot of overhead. It might be feasible -- except that Perl is not as low-level as something like C, which would make it harder to do OS work with it.
my $0.02; # can't use $0 like that!
local $0; $0.=q(02); # OK