How to monitor your system from the terminal (Linux)

There's a lot of tools available under Linux that allow you to monitor the status of the operating system. Most of them are rather confusing and require extensive knowledge of the inner workings of Linux. If you tend to get confused by the sheer amount of information provided by your system monitoring tool, give nmon a try: you might find nmon to be a surprisingly simple and efficient at striking the right balance between too much information and too little.

1. Install nmon

   sudo apt install nmon

2. Run nmon

   nmon

3. Type a letter to start a specific monitor (c for CPU, d for Disks, etc.), or q to quit.

References: nmon