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 ...

When writing about digital technology, or any topic, is something you do, it takes time to accumulate credibility. Even if you put in the study time up front to know your stuff, building trust takes ...

I have several folders with hundreds of nested sub-folders and tens of thousnnds of nested files even deeper inside. I want to get an estimated count of how many files are really there. What is the ...

If your company handles phone marketing and you use Unix or Linux workstations such as Ubuntu PCs, then you have a few tools at your disposal for advertising. One is the "mailx" command, which allows ...

If you’re a Unix admin, it helps to know how password aging is managed and how you can determine when a password was last changed or force a change in the near future. The key to understanding how ...

A lot of information is available about individual files on a Unix system. For example, the ls -l command will display the permissions matrix and ls -i will display a file’s inode. But, if we want to ...

One of the things that every Unix systems administrator needs to know to properly manage a Unix system is who else is using the powers of root. Without that knowledge, it is not possible to be ...