Learn new terminal techniques and test your understanding with these fun, interactive tutorials.

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There's a lot to learn about image files on the command line, from verifying file format to finding out where and when photos were taken and maybe even getting an unusual view of what they look like.

I teach new Linux users these four short, easy to remember commands early on. Learn what they are and how to use them.

The Linux command line offers some very useful tools to enable you to perform mathematical calculations. This post runs through a series of commands you can use and demonstrates some techniques for ...