![]() The command line on your computer is a similar communication interface it's a portal in which you'll use your keyboard to type in a language the computer can read, and the computer will act out your instructions. You press "3," "0," and "Start" on a keypad in order to tell the microwave to heat something for 30 seconds. Imagine you're that you're using a microwave. This will vary per computer and per operating system! On the left-hand side of your command line within Terminal, you have what's called a prompt. You might see $, %, >, or other symbols, or you might see the name of your computer. The line is called the command line: First line when opening Terminal Let's visually break down what you see upon opening the Terminal. This is what it looks like on Mac: Command line appearance preferences Command line If you want to change the color of the text or your Terminal window to make it more snazzy, you can do so in the application's preferences. Imagine that your computer is just sitting there, waiting for instructions! Rest assured that nothing is currently happening. I see a simple dollar sign and a blinking cursor, but you might see the name of your computer too or other symbols: Terminal waiting for instructions My Terminal window looks like this, but yours is probably a different color or set of text on the left (which is fine!) When you first launch Terminal, you'll likely have an empty window with not much going on. ![]() To start this chapter, you should open Terminal or the equivalent application you're using.
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