#!/bin/sh mmuser="mailman" mmgroup="mailman" mmhome="/var/lib/mailman" # make sure the user/group exists or add if not exists /usr/bin/getent group $mmgroup || \ /usr/sbin/groupadd $mmgroup /usr/bin/getent passwd $mmuser || \ /usr/sbin/useradd -s /sbin/nologin -d $mmhome -g $mmgroup $mmuser # End of file