I have an email account that has passed 60GB of emails, and currently I'm having a lot of trouble using an email client to archive emails of last year (2011).

Via terminal, I am trying to use [find](http://manpages.ubuntu.com/manpages/lucid/man1/find.1.html) to locate the files between 2011-01-01 and 2011-12-31, but no avail.

How can I find files between two dates?

If relevant, the end goal will be a batch that will move each file found, matching the date interval, to a folder.