How to Make a Fancy and Useful Bash Prompt in Linux

We can program our humble Bash prompt to display all kinds of useful information, and pretty it up as well. We’re sitting there staring at our computers all day long, so why not make it look nice? We will learn how to quickly test new configurations and quickly reverse them, how to make nice colors, how to display different types of information, customize it for different users, and make a multi-line prompt.