In this chapter, we focused on hardware settings, looking at the CPU, RAM, and swap information in the various directories. We used a variety of commands. Also, we touched on IRQs and the various interrupts available in a Linux system. We then looked at devices, in the context of files. Finally, we worked with modules. We saw the various modules currently available in a Linux system, and learned the steps to install and remove a module.
In the next chapter, we will focus on the process of booting the system. Moreover, the various boot managers will be covered. This is another critical aspect for every Linux engineer to get to grips with. Simply put, without a boot manager, the system won't be able to boot unless we boot off some form of media. Gaining the knowledge will put you, as a Linux engineer, ahead of other so-called engineers. You will be at a greater advantage regarding certification after completing the next chapter.