In order to use it, however, you’ll need to get to grips with its basic commands and functions. There are several advantages to using Terminal to accomplish some tasks - it’s usually quicker, for example. Terminal is a Mac command line interface.
Why would you want to do that? Well, perhaps because you’re used to working on a command line in a Unix-based system and prefer to work that way. The Terminal app allows you to control your Mac using a command prompt.