When you type commands in the terminal, that’s **standard input**. When you run the command, the results typically go to **standard output**. This input/output model allows you to chain commands ...

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 ...

If you Google the terms “ssh” and “password”, you will come up with a generous number of hits on how to set up SSH so that you can log in to a system or run commands remotely on that system without ...

When a question like “How can a bash script tell you where it’s located?” pops into your head, it seems like it ought to be a very easy question to answer. We’ve got commands like pwd, but … pwd tells ...