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Proper error detection and recovery is often ignored by UNIX developers. The lack of exceptions from the C language and the rudimentary error mechanisms from the standard C library certainly contribute to this. This article familiarizes you with the UNIX standard error reporting mechanism, the errno global variable. You'll also learn about a couple of associated global variables ( sys_nerr and sys_errlist). Like it, then digg it.

Find out how the Zend Framework makes it easy to add Ajax interactions to your application by automatically translating native PHP objects to and from JavaScript Object Notation (JSON).

Develop IDEs as plug-ins for any of the existing programming languages or your own language. Learn the two most important parts of the IDEs.

Martin Streicher, Editor-in-Chief, Linux Magazine, looks at three essential UNIX utilities that deliver the entire Internet to your command line.

Get the kernel loaded without waiting for the BIOS to do a lot of the setup that the kernel is about to do -- and do faster, better, and probably more reliably.

Nearly everyone knows that horrible, sinking realization that something's gone wrong. The file you saved isn't there, or at least it isn't where you thought it was. The machine just rebooted and there's a little dialog box saying that the disk isn't recognized, would you like to initialize it? Most of you know what happens next: you do the one thing that guarantees that the data stays lost. You do something hasty, something stupid. In short, you panic.

With its new, annotations-based framework, JUnit 4 has embraced some of the best features of TestNG, but does that mean it's rendered TestNG obsolete? This article considers what's unique about each framework and reveals three high-level testing features you'll still find only in TestNG.

You can implement a balance point between a PHP application that is too configurable and one that is too closed. Learn three techniques for creating user-editable configuration files that will keep end users from mucking around in your code and from making changes to your application's behavior.

Sure, NetBSD runs on more hardware platforms than any other UNIX derivative due to smart design decisions and a commitment to portable code, but does this make it the best joice for your stability and compatibility across your hardware platforms?

Web services have been around for awhile, but the idea has yet to fully take off. Learn how that's about to change, particularly as Web services go private and mobile. Learn how the application builders of tomorrow will use simple, drag-and-drop techniques to build new applications out of existing services.

Developers call this project a "megaframework," because it is made up of several pre-existing subprojects.

The ability to create templates to codify best practices (that generate artifacts) is a powerful concept that can save you countless hours and reduce tedious coding. Get an introduction to the code generation framework, JET, which is an Eclipse technology project, that we expect many developers will use in their endeavors.

You've heard some rumblings about Mobile WiMAX, but until recently it's all been in the abstract. Learn what's changed to make WiMAX a potentially devastating competitor to the telecom empire as you know it, all in this month's Roaming charges.

Find out how to unit test your PHP code at the module, database, and user interface level.

You'd expect a complex pieces of code, but with Ruby on Rails migration, it turns out to be incredibly simple.

Work smarter with system admin, and Unix specialized tools and shortcuts.

This article gives you a close look at the operating system so secure that it was once banned for use in a DEF CON competition, where crackers go after each other's systems.

This article show you how AppFuse uses open source tools to help you develop Web applications quickly and efficiently. The AppFuse's community is healthy and happy -- and one of the few places where users of different Web frameworks actually get along.

This article gives you a short overview of what's new for cheat sheets in Eclipse V3.2, including the composite cheat sheets feature, and gives good examples of how to use them.

With PurifyPlus you can automatically pinpoint hard-to-find bugs, application performance bottlenecks, and identifies untested code.