However the sort is choking (not sorting numerically) since it doesn't know how to deal with numbers like 01, 02, etc.

I don't think that is the problem, it should work fine.

You are sorting by day ($3) first, then by year ($1) and finally by month ($2) - is that really what you want?

BTW use \. in regexes to match a literal dot .

Update: fixed description of sort order

In reply to Re: Regex/Sort Questions by moritz
in thread Regex/Sort Questions by logie17

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