Tools for monitoring the hardware health of Linux systems.,

Procmail can be used to create mail-servers, mailing lists, sort your incoming mail into separate folders/files (real convenient when subscribing to one or more mailing lists or for prioritising your mail), preprocess your mail, start any programs upon mail arrival (e.g. to generate different chimes on your workstation for different types of mail) or selectively forward certain incoming mail automatically to someone....

iReport is a visual reporting tool based on JasperReports and written in pure Java. You can manage charts, images, sub-reports, etc. Data can be retrieved using JDBC, TableModels, JavaBeans, and XML. It supports output in PDF, XML, XSL, CSV, HTML, and Java2D....

Umbrello UML Modeller is a Unified Modelling Language diagram tool for KDE. It is able to produce all types of UML diagrams and uses an XMI-based file format. It imports and generates code in a couple of languages.

Umbrello is part of KDE's kdesdk module....

RabbitMQ is a complete and highly reliable Enterprise Messaging system. The RabbitMQ client libraries and broker daemon can be used together to create an AMQP network, or used individually to bring the benefits of RabbitMQ to established networks.

ffdshow is DirectShow and VFW codec for decoding/encoding many video and audio formats, including DivX and XviD movies using libavcodec, xvid and other opensourced libraries with a rich set of postprocessing filters.

GQview is an image viewer for X windows. Features include single click file viewing, external editor support, thumbnail previews, thumbnail caching, and adjustable zoom. GQView has the ability to compare files and list similar or duplicate images based on content. Full screen view and slideshows allow for basic presentation of images. The program offers simple image file management with the ability to copy, move, rename, and delete files. Image collections, similar to a song playlist, are also supported....

bash_completion extends bashs standard completion behavior to achieve complex command lines with just a few keystrokes. This project was conceived to produce programmable completion routines for the most common Linux/UNIX commands, reducing the amount of typing sysadmins and programmers need to do on a daily basis....

Test::Harness provides test execution and result analysis for Perl. It runs test scripts, parses TAP (Test Anything Protocol) output from them and presents a summary of which tests passed and which failed.

It may be used to test non-Perl programs - in fact anything that outputs TAP....

Celestia is an OpenGL-based 3D space simulation for Unix and Win32 that lets you travel through the solar system, to the stars, and even beyond the galaxy. Visit over 100,000 stars, 100 solar system bodies, and all known extrasolar planets.