Solaris

 
while true
do
if [ ! -f /tmp/messages_checked ] ## Copy when executed for the 1st time
then
cp /var/adm/messages /tmp/messages_checked
fi
comm -13 /tmp/messages_checked /var/adm/messages > /tmp/messages_to_check ## Get the messages not checked
egrep 'DUAL-5-NBRCHANGE|IP-4-DUPADDR|STANDBY-3-DUPADDR' /tmp/messages_to_check > /tmp/messages_to_report ## check for needed message patterns
if [ `wc -l /tmp/messages_to_report | awk '{print $1}'` -gt 0 ] ## Will send mail if any pattern match found
then
mailx -s "URGENT : Messages there" <email address> < /tmp/messages_to_report
fi
cp /var/adm/messages /tmp/messages_checked ## Copy the checked messages
sleep 10
done