The eval command allows you to run the contents of variables as commands and can be very useful, especially in scripts. There are probably a lot of Linux users who have never encountered the eval ...

In Jack Wallen’s How to Make Tech Work tutorial, he shows how using the Docker exec command provides you with more flexibility. Did you know you can issue commands within a running Docker container?

If you administer multiple Linux servers, Jack Wallen has an easy script you can use to run commands on all of those servers at once. I’m always looking for ways to make my work more efficient, so the ...