title: How to get AWS RDS CPU and memory metric using script other then cloudwatch
body: <p>I am hosting Linux server and RDS Posgresql server in Amazon Web Services. I would like to get AWS RDS CPU Utilization, Memory usage  Metric using linux script. other than cloudwatch. Is there any way to do it..? I don't want to go with any third party software. i need to write cron job in linux. </p>