From the Editor - Traps? Who Needs Them?
Our reader surveys consistently show that a lot of our readers are still running, and even developing code for, non-Linux operating systems. Whatever system you're coding for today, you can use Linux as your development platform and give yourself the flexibility of moving to Linux tomorrow.
In a recent essay entitled “Free But Shackled—The Java Trap”, Richard Stallman wrote, “If you develop a Java program on Sun's Java platform, you are liable to use Sun-only features without even noticing. By the time you find this out, you may have been using them for months, and redoing the work could take more months.” That's bad news, but platform lock-in isn't only for Java developers. So build and run your projects on an all-free system regularly to save yourself from accidental lock-in as you work. We're happy to offer four complete cross-platform sample applications in this issue.
First, Python is one of our favorite languages here at Linux Journal. Its simplicity makes old code, and other people's code, easy to understand and maintain. Let David Reed's GladeGen (page 40) write the GUI code for you, so you can focus on business logic.
The best development frameworks are the ones that grow cooperatively with an application that depends on them. Mozilla is a good example. Don't get Mozilla the browser mixed up with Mozilla the framework—work through Nigel McFarlane's process viewer utility on page 66 to understand how to use Mozilla's framework to write non-Web applications.
As dedicated followers of fashion, we're happy to have a blog tool written with the .NET-compatible Mono. Ian Pointer shows how it's done and scores two buzzword points on page 50.
If you need to develop for Microsoft Windows, you can save yourself the expense and learning time of another set of development tools. Joey Bernard's article on MinGW (page 58) shows you how to add Windows support to your Linux apps or bring Windows apps to Linux with minimal rewriting.
Finally, on page 83, John Healy, Andrew Haley and Tom Tromey explain how Red Hat made the popular Eclipse integrated development environment build natively with no Java Virtual Machine (JVM), and no proprietary dependencies, at all. Maybe Java developers are finally getting the hang of this cross-platform thing. Stay out of traps, don't fall for lock-in, and enjoy the issue.
Don Marti is editor in chief of 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.
Free to Linux Journal readers.Register Now!
- SUSE LLC's SUSE Manager
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- My +1 Sword of Productivity
- Non-Linux FOSS: Caffeine!
- Managing Linux Using Puppet
- Doing for User Space What We Did for Kernel Space
- SuperTuxKart 0.9.2 Released
- Parsing an RSS News Feed with a Bash Script
- Google's SwiftShader Released
- Rogue Wave Software's Zend Server
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