In the previous chapter, we ventured into some context for the wonderful world of Linux and Bash. Since this is a practical, exercise-driven book, we're going to use this chapter to set up a machine where you can follow along with the examples and perform the exercises at the end of each chapter. This can either be a virtual machine or a physical installation; that is up to you. We will discuss this in the first part of this chapter, before continuing with the installation of VirtualBox and, finally, creating an Ubuntu virtual machine.

The following command will be introduced in this chapter: ssh and exit.

The following topics will be covered in this chapter:

• Choosing between a virtual machine and a physical installation
• Setting up VirtualBox
• Creating an Ubuntu virtual machine