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 ...

One of the nice things about the Amazon Web Services (AWS) environment is that it includes a GUI that's sufficient for performing most administrative tasks. Even so, most administrators eventually ...

Many Java applications started from the command line take arguments to control their behavior. These arguments are available in the string array argument passed into the application’s static main() ...