LinuxQuestions.org - Procmail: match pattern then pass to shell script

Hello

I have a simple lookup table as follows:

Code:

fred      fred.flintstone@bedrock.com

barney    barney.rubble@bedrock.com

Using Procmail, if I receive an email for bedrock.com, I want to check to see if it needs redirecting based on the information in my lookup table. I'm unsure of the best method.

I tried egrep and awk but neither can accept a pattern from stdin, so I wrote a shell script (alias.bedrock is the lookup table):

Code:

#!/bin/sh

awk "/$1/ {print \$2}" alias.bedrock

However, I don't know how to get procmail to pass the 'user@' portion of the address to the shell script. My recipe starts something like this:

Code:

:0 wc:

* ^X-Original-To:.*@bedrock.com

| ./<script> (user@) alias.bedrock | $SENDMAIL

As you can see, I somehow need to capture the value of .* in the regular expression and pass it to my script.

1. Is this the best method to achieve this?
2. Is anyone able to offer some assistance please?

Many thanks,
Steve :)