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 ...

The printf command offers well-defined behavior following the POSIX standard, which means it works the same way across shells ...

The script command not only makes a record of what commands you run but also allows you to save the output generated so that you can examine it later or easily turn your command sequences into scripts ...

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 ...

There are only a few special characters involved in working with character strings on the command line or in a script on Linux: the single quote, the double quote and the backslash. But the rules aren ...