Inside sources at eGauge Systems tipped us off to the fact that their new eGauge2 Web-based electric energy and power meter is powered by Linux. eGauge2, now 40% smaller than its predecessor, is used to measure and record whole-house consumption, renewable (such as solar and wind) energy generation, and individual loads, such as appliances or geothermal system pumps and backup heaters. It can measure up to 12 circuits on up to 3-phases (120V–480V, 50–60Hz). The data can be viewed on any Web-enabled device through the built-in Web-server, and the device records the most recent 30 years of data in its built-in solid-state memory. The measurements also can be accessed through BACnet and/or the recorded data can be shared with Google PowerMeter.
Given how good we Linux geeks have been this year, Santa Claus (via his agents at Graebert GmbH) is treating us to a new CAD application, namely ARES Commander Edition Version 1.0 2D/3D CAD. Graebert says that ARES Commander Edition is a powerful and affordable 3D CAD solution that is fully capable of supporting both AEC (Architecture/Engineering/Construction) and MCAD (Mechanical CAD) and the ability to exchange files across all three supported OS platforms, Linux, Mac OS and Windows seamlessly. Users also have a choice of experiencing a fully Linux-specific UI or a more tailored UI that matches the Windows version, both of which are fully command-compatible with AutoCAD. A free 30-day trial is available for download from Graebert's Web site.
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James Gray is Products Editor for Linux Journal.
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.
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- My +1 Sword of Productivity
- Tech Tip: Really Simple HTTP Server with Python
- Managing Linux Using Puppet
- Non-Linux FOSS: Caffeine!
- Returning Values from Bash Functions
- Doing for User Space What We Did for Kernel Space
- Rogue Wave Software's Zend Server
- Google's SwiftShader Released
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