my @new_array = do {
  my %bobs_your_uncle;
  grep !$bobs_your_uncle{$_->{bob}}++, @array;
};

##</code><code>##

{ bob=>'carol', alice=>"ted" }

##</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"'