Learn the fundamentals of sorting and de-duplicating text on the command line. If you've been using the command line for a long time, it's easy to take the commands you use every day for granted. But, ...

If you need to count how many of each character is included in a file or phrase, there are some handy commands you can string together to accomplish this along with scripts and aliases that can make ...

GUIs are great—we wouldn’t want to live without them. But if you’re a Mac or Linux user and you want to get the most out of your operating system (and your keystrokes), you owe it to yourself to get ...

I'm a big fan of gamified learning. That led me to try out a popular Linux learning game: OverTheWire. What started as a quick curiosity turned into hours of addictive puzzle-solving, terminal ...