Monitoring server usage on VPS
We have a CentOS VPS with a provider where we have WHM and CPanel access. I want to set up a script so that the server will email me on a daily basis every hour the server's memory and diskspace usage. This way I can get a better idea if we have too little or too much memory or disk space on hand as we are paying per GB.
Does anyone know of any such script that is already out there for this sort of thing? I am more familiar with the Windows systems not Linux. I understand it would just be shell scripts, cron jobs and email but I'm not sure which commands are best for this information.