This column is the second of a two-part series on 3-D printing. In Part I, I discussed some of the overall concepts behind 3-D printing and gave an overview of some of the hardware choices that exist.

In this day and age, there are more ways to read than ever before. Even though Linux Journal no longer publishes on paper, you still can read it with Web browsers, PDF software, e-book readers and cell phones. I don't have an e-book reader myself, but I think you could make the argument that the one true way to read Linux Journal is from the command line.

Although it's true that I tend to focus mostly on Linux in systems administration (after all, that is my day job), I've always had a secondary interest in security, whether it's hardening systems, performing forensics on a hacked system, getting root on a pico projector or even trying my hand at finding and exploiting vulnerabilities.

In many ways, I feel sorry for people stuck with proprietary operating systems. When something goes wrong or if they have a problem to solve, the solution either is obvious, requires buying special software or is impossible. With Linux, I've always felt that I was limited only by my own programming and problem-solving abilities, no matter what problem presented itself.

In the February 2011 issue, I wrote about screen, the console window manager, and how I configure its hardstatus line to show notifications along the bottom of my terminal window.