if-then or something similar

Hello!

I'd like to do something like a "if-then" in procmail, like I would be
able to do in a shell-script.
Here is it as shell-script, is there any way to translate it to my
.procmailrc?

if [ "`cat .mutt.aliases | grep -ic $FROM`" != "0" ]; then
        $PERLSCRIPT
fi

Maybe "!=" has to be replaced by "-gt", I am not sure about that yet.
$FROM is from "FROM=`formail -zxFrom:`"

So, is something like that possible?

Best regards,
Arvid

-- 
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