Unixcop published a tutorial about installing nmon to monitor your Linux installation.
How to install nmon to monitor Linux
In this post, you will learn how to install nmon on Linux. With this tool, you will be able to monitor a Linux system quickly. nmon is short for Nigel’s performance Monitor for Linux on POWER, x86, x86_64, Mainframe & now ARM (Raspberry Pi)
How to install nmon to monitor Linux - Unix / Linux the admins Tutorials
