A GUI for ps(1) Built with Mozilla
mozilla -chrome file:///home/nrm/psviewer/tree.xul
The psviewer tool has first-class status within the Mozilla installation. If necessary, it could be integrated with other applications, such as the Firefox/Firebird browser or Thunderbird e-mail client. It also could be added as a menu option to the Tools menu, for example.
There's a lot of technology in this article. The biggest mistake you can make is to try to use all the features described here in your first Mozilla experiment. Because validation of XML is less than verbose in Mozilla, you easily can become tied in a knot. It's best to start with a simple project and work up to the challenging combinations played with here. Although the output of ps(1) also can be made into a dynamic HTML page, XUL is a more robust and professional GUI in the end, fully integrated with the desktop.
Mozilla is a powerful GUI environment waiting to be explored. It is likely to occupy the same niche under Linux that Visual Basic occupies under Windows. Even better, Mozilla is a portable and cross-platform technology. Your projects can be designed to work on BSD, HP-UX, SunOS, AIX and Mac OS X, as well as Linux.
Nigel McFarlane is a freelance science and technology writer with an extensive programming background. His latest book is Rapid Application Development with Mozilla, ISBN 0131423436. Reach him at email@example.com.
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.
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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