PREIN
/bin/sh
getent group nagios >/dev/null || groupadd -r nagios getent passwd nagios >/dev/null || useradd -r -g nagios -d /var/spool/nagios -s /sbin/nologin nagios exit 0
/bin/sh
getent group nagios >/dev/null || groupadd -r nagios getent passwd nagios >/dev/null || useradd -r -g nagios -d /var/spool/nagios -s /sbin/nologin nagios exit 0