/bin/cat /etc/courier/userdb/* >/etc/courier/exim
/bin/chmod o-r /etc/courier/exim
/usr/sbin/exim_dbmbuild /etc/courier/exim /etc/courier/exim.dat
/bin/cat /etc/courier/userdb/* >/etc/courier/exim
/bin/chmod o-r /etc/courier/exim
/usr/sbin/exim_dbmbuild /etc/courier/exim /etc/courier/exim.dat