The printf command offers well-defined behavior following the POSIX standard, which means it works the same way across shells and systems. Where echo often fails with escape sequences, printf handles ...

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 ...

Linux built-ins are commands that are built into the shell, much like shelves that are built into a wall. You won’t find them as stand-alone files the way standard Linux commands are stored in ...

Ever wondered why programming in Bash is so difficult? Bash employs the same constructs as traditional programming languages; however, under the hood, the logic is rather different. The Bourne-Again ...

If you're not yet comfortable with writing scripts on Unix and Linux systems, this post might get you off to a healthy start. Creating a script on a Unix or Linux system can be dead easy or ...

For many users who get started with the command line in Linux, there’s a good chance they’re using Bourne Again Shell, or Bash. Bash is the default shell on Mac OS X, and Windows users can use Bash ...