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 ...

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 ...

Unix was developed as a command line interface in the early 1970s with a very rich command vocabulary. DOS followed more than a decade later for the IBM PC, and DOS commands migrated to Windows.