How To Monitor Your CPU and RAM in Linux

Whether we’re using a Raspberry Pi or a data center server, we need to know how our CPU and RAM are performing and, in Linux, there are a plethora of commands and applications that we can use. At the basic low level “How much RAM have I used?” to inspecting the CPU for vulnerabilities such as Spectre, there are commands at our disposal.

We are going to look at a number of different ways to get RAM and CPU data in the terminal, before we finally look at two applications which can provide a basic level of assurance, at a glance.

These commands will work on most Linux machines. Our test PC ran Kubuntu 21.10 but we are also certain that you can also run through this how-to on a Raspberry Pi. All of the how-to is performed via the Terminal.