There's Linux Inside
Have you ever uncovered Linux hidden in a place you didn't expect or have you implemented it covertly? Here are some interesting stories from readers.
This submission comes from Andy in Vermont, USA:
"The gift-registry kiosks in Burlington Coat Factory stores are all driven by Linux. It's pretty hard to notice unless you're watching while the store manager turns them on. But if you look carefully at the cursors, you'll see that they have the Linux shapes."
This submission comes from an anonymous Linux enthusiast in Australia:
"It is a story of 2 ATMs in a shopping area on the Whitsunday Coast in Queensland, Australia. In the middle of making a withdrawal the power went off in the building with my card in the machine. Hanging around for 30 minutes or more hoping to get my card back I was at the machine when the power returned. The screen came back to life and a single sentence appeared: "This is a Linux programme".
The "Linux Programme" continued to load and the machine was again in business. The other machine bore a message that it was out of order until a technician could attend to it."
This submission comes from Kevin, who is serving in the U.S. military in Afghanistan:
"Not sure if you have heard this one before, but I have been using Linux in my Army helicopter. Both the U.S. and Australian military helicopters here in Afghanistan have the Blue Force Tracker system, a moving-map-with-icons communication and tracking system.
The heart of the system is a microrouter which coordinates all the networking and radio signals. It is self-booting and runs embedded Linux on a PC-card memory module. That is all the information I can pass on for
This submission comes from Chris in Ontario, Canada:
"Not too sure if anyone has sent this into you yet, but the 'MegaTouch' games that you see in bars (at least here in Ontario) are all running on Linux. I'm a bartender in Oakville, ON, and I've watched the service guy upgrade the machine, so I knew it was just standard PC parts inside. But last week the machine froze up so I had to "reboot" it, and there it was the familiar boot screen."
This tip comes from Eric in California:
"While surfing the Internet at a Barnes & Noble Wi-Fi hot spot, I got bored and started browsing their network. I noticed they had a machine running in their "wayport" work group, which was a Samba server running Debian. I couldn't access the machine to see what all it was doing, but it looked like it hosted their printing, among several other things I'm sure. I found it interesting nonetheless!"
Have you uncovered Linux in a hidden place? Leave a comment below.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
Free to Linux Journal readers.Register Now!
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide