change config for many lists in mailman

config_mailman.php

<?php
        $file = 'daftarMilis';
        $f=fopen($file,'r');
        while($list = fgets($f)){
                $list = rtrim($list);
                exec("echo 'reply_to_address =\042".$list."@ftsl.itb.ac.id\042' > config.data");
                exec("echo 'reply_goes_to_list = 2' >> config.data");
                exec("echo 'acceptable_aliases = \042".$list."@ftsl.itb.ac.id\042' >> config.data");
                exec('/usr/sbin/config_list -i config.data '.$list);
        }