Procmail recipe: extracting matched text

David Gibson david at
Tue Dec 10 11:42:53 EST 2002

On Tue, Dec 10, 2002 at 11:33:50AM +1100, Michael Still wrote:
> Hey,
> now that we're talking about regexps, I am having some troubles finding
> documentation which covers the text matching in procmail.
> Specifically, I have a rule like:
> :0:
> * List-Id.*<([^.]*).*>
> $1
> Which should match any mailman mailling list, and then put the mail into a
> folder named after the first portion of the list id.
> However, $1 is clearly not the right way of getting to the text wrapped in
> ()'s.
> Can I please have a hint what is?

Erm.. are you sure that procmail's notion of regular expressions
actually allows this at all?

David Gibson			| For every complex problem there is a
david at	| solution which is simple, neat and
				| wrong.

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