in reply to How can I update my previouse post?

You don't. Preview preview preview preview untill its perfect. In your case however, you have no reason to update the node. Since you've apparently found an answer you should simply reply to your own question.

Of all the things I've lost, I miss my mind the most.
perl -e "$q=$_;map({chr unpack qq;H*;,$_}split(q;;,q*H*));print;$q/$q;"