If you don't follow the script, it's OK

That might have been a bit of a dirty trick, throwing a sudden perl script you've never heard of at you. But that's OK – if you want to use it, you can; if you want to understand it, you can read it; if you want no part of it... you can roll your own, or just do a simple mysqldump --alldatabases instead.

One reason I threw mysqlbak.pl at you was to offer a helpful tool... but another was to point out what a shock it is moving from repository-owned code to stuff you have to maintain for yourself.