There's a Relational Database in Your Unix CLIDid you know that there’s a relational database hiding in your Unix shell? There really is, it turns out. A friend of mine was recently telling me about his discovery of the join command, which allows you to combine data from multiple files that contain tabular data. Let’s take a closer look. Examples For these examples, I’ll be using two files. courses.csv: CIS 162,Computer Science I CIS 163,Comp
