Remove anything still acknowledged after the previous run.

remove_acks.sh

#!/bin/bash

livestatus="/usr/local/nagios/var/rw/live"
acked_services="/usr/local/nagios/var/ack_services"
acked_hosts="/usr/local/nagios/var/ack_hosts"
now=`date +%s`
commandfile='/usr/local/nagios/var/rw/nagios.cmd'

# Clear acks on any currently acked service
while read sline; do
        host=$(echo $sline | cut -d ";" -f 1)
        service=$(echo $sline | cut -d ";" -f 2)

        echo "Removing ack for $service on $host"
        /usr/bin/printf "[%lu] REMOVE_SVC_ACKNOWLEDGEMENT;${host};${service}\n" $now > $commandfile
done < $acked_services

# Clear acks on any currently acked host
while read host; do
        echo "Removing ack for $host"
        /usr/bin/printf "[%lu] REMOVE_HOST_ACKNOWLEDGEMENT;${host}\n" $now > $commandfile
done < $acked_hosts

sleep 5

# Make a list of anything that's still acknowledged.
services_filter="GET services\nColumns: host_name description\nFilter: acknowledged = 1"
hosts_filter="GET hosts\nColumns: host_name\nFilter: acknowledged = 1"

echo -e $services_filter | /usr/local/bin/unixcat $livestatus > $acked_services
echo -e $hosts_filter | /usr/local/bin/unixcat $livestatus > $acked_hosts