Pick 3 system commands and provide the following:
- A brief description of the command and why you might use it
- How you will invoke the commands through Perl and why (System, Exec or Backtick)
- Sample code showing how you would use the command
Your work on connecting to a database has not gone unnoticed. There is a growing interest to see better reporting, and Perl may be the answer. Make a table in your database with the attached spreadsheet as your guide, and generate the following reports:
- Find all servers with CPU utilization above (>) 90%.
- Find the average memory usage for all servers.
- Show the server with the most memory utilization.
- Show the server with the least amount of disk free.