Scriptteste03.sh

#!/bin/bash

intervalo=60
err_log="/var/log/mon_site.log"

verifica_porta() {
hora=`date +%T`
dia=`date | awk '{print $2" "$3}'`
PORTA="8080,8081"
chk=`netstat -an | grep -c :"$PORTA"`

if [ "$chk" = "0" ]; then
   echo "$dia $hora SITE OFF" >> $err_log
else
   echo "SITE ON"
fi
sleep 0.5
}

while true
do
   for i in $(echo $PORTA | tr ',' ' ');
   do
      verifica_porta $i
   done
   sleep $intervalo
done