#!/bin/bash

perl -e 's/\d+/"0|$&$^I"=~s#\^#**#r/gee' -pi^3 <<< 2spooky4me
perl -e 's/\d+/"0|$&$^I"=~s#\^#**#r/gee' -pi/3 <<< some1meme2sequences3can4be5really6long7