From owner-freebsd-questions  Tue Sep 21  5:21:59 1999
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Date: Tue, 21 Sep 1999 05:33:19 -0700 (PDT)
From: Alfred Perlstein <bright@wintelcom.net>
To: Langa Kentane <evablunted@earthling.net>
Cc: FreeBSD <Freebsd-questions@FreeBSD.ORG>,
	Linux <linux-admin@vger.rutgers.edu>
Subject: Re: Aliases file administration
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On Tue, 21 Sep 1999, Langa Kentane wrote:

> Hi all.
> 
> I my mail server hosts about 600 hundred users with each user allowed to
> have up to five aliaes.   Is there some front end program that I can use to
> manipulate my aliases file and be able to sort the aliases by order of the
> user the address is aliased to.  I want to be able to see how many aliases
> each user has and if they have gone over the limit.
> 
> Can you guys please suggest such an app for me.

----------------------------
#!/usr/bin/perl

require 5.004;

while ($_ = <STDIN>) {
	next if /^[ \t]*(#.*)?$/ ;	#skip blank and comment only lines
	$_ =~ s/(#.*)|(^ *)//g;		# remove comments and leading ws
	$_ =~ s/[ :,\t][ :,\t]*/ /g;
	chomp;
	$line = $_;
	@x = reverse(split(/ /,$line));
	$alias = pop(@x);
	while ($user = pop(@x)) {
		print "$user $alias\n";
	}
} 
----------------------------

run this perl script in a pipeline like so:

this_script.pl < /etc/aliases | sort

-Alfred Perlstein - [bright@rush.net|alfred@freebsd.org]
Wintelcom systems administrator and programmer
   - http://www.wintelcom.net/ [bright@wintelcom.net]




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