Summary

In this chapter, we touched on some of the very basics of the shell, such as things that you should know how to deal with in the correct way. Failing to preserve variable names can, for instance, lead us to unwanted results and, on a different side, knowing how to access environment variables will help us create a better environment for our day-to-day tasks. As we said, basic but important things that a Bash master should know by heart, because unmasks, file descriptors, and fiddling with variables are what let you play awesome tricks and are the building blocks to becoming more advanced. So, do not just overlook them; they will help you.