How to config alert send out when service down?

[CC Yuen]

Hi list,

As title, I tried to enable the commands as following:

# 'notify-by-email' command definition
define command{
        command_name    notify-by-email
        command_line    /usr/bin/printf "%b" "***** Nagios 1.0 *****\n\nNotifica
tion Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddr
ess: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $DATETIME$\n\nAdditional
 Info:\n\n$OUTPUT$" | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ alert - $HOSTALIA
S$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
        }

but it has error when restart. What is the correct step that I do?
I can receive alert email when host down.


Thanks
Chung


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