The output will be what you expect, it will echo Hello World onto the screen. You can also use echo to view the contents of a variable: As with most Linux commands, there's definitely more that we can ...

In the beginning, all we had was the command line. Then as Windows matured, the need to access that throwback interface waned. That doesn’t mean the Command Prompt is completely useless. In fact, ...

In our first tutorial on command line wizardry, we covered simple redirection and the basics of sed, awk, and grep. Today, we’re going to introduce the concepts of simple variable substitution and ...