Free red software for linux

Red Hat Linux is probably the best-known Linux distribution. Red Hat Linux is well-supported by commercial software, and tends to be easy to install and have good hardware support out of the box.

Compaq has taken over the maintenance for Red Hat for their Alpha processor - theres a link to their Alpha Red Hat page below.

Red Hat 9 is the last version of Red Hat Linux per se, and Red Hat will stop supporting it soon. Instead they offer a commercial Linux distribution, "Red Hat Enterprise Edition", and a free distribution, "The Fedora Project".

Red-Piranha is an open source search system that can actually learn what you are looking for. It lets you go everywhere , find anything , understand everything.
Because it is open source , it can integrate with any system. Because you can use it as a web page , command line or XML- WebService , it will work with most languages , including Java , Perl , C#/.Net and PHP. As a Java based program , it will run on any platform including Windows , Linux / Unix and Mac.
Main features:
- Personal Search Engine for your Desktop (Windows , Linux and Mac).
- Intranet Search Engine - Search your Company or College Intranet.
- Part of your Development Project - Have search abilities up and running in a few minutes.
- To provide Search facilities on your website.
- As a P2P search engine.
- In conjunction with a wiki, as a knowledge / document management solution.
- Scan a set of websites for the data you want (e.g. Search Job sites on a hourly basis).
- Explore the Semantic web using RDF.
- Search RSS feeds for the information you want.
- Search your Companies systems (including SAP , Oracle or any other Database / Data source).
- Provide a back end for searching in your App (Web , Swing , SWT , Flash, Mozilla-XUL, PHP , Perl or even c#/.Net) .
- Document Management for PDF, Word and other Docs.
- As a Webservice to provide search information
- As a command line tool , to give searching power to your scripts.
- Provide a Search facility for your project documentation.
Using
To use Red-Piranha - open your favourite web browser and point it at http://localhost:8080/RP . Within a few seconds , you should see the Red-Piranha start screen. This will have three items of interest
- A Text box , where we enter the information to add or search
- An add information button - to tell Red-Piranha about new information
- A Search button - to carry out a search.
Before we can search , we must tell Red-Piranha we information we are interested in. This is as easy as putting the piece of information we want to add (e.g. the folder c:temp) in the search box and pressing the Add information button. A message will be displayed saying that your information is being added and will be available to search shortly. For more information , look in the logs at TOMCAT_HOMEWebappsRPlogsrp.log
Examples of things we can add to Red-Piranha are
- A folder (e.g. C:Temp). All files in both this folder and *all* its subfolders will be added.
- An individual file. This file can be text , a web page , a word document , or pdf document. For binary files (like word , which are not plain text) , Red-Piranha will scan the file for recognizable text and add that.
- A Web page. Red-Piranha will add this web page , *and* web pages it links to.
- A Google Search (e.g. http://www.google.com/search?q=some+thing?m=100). Red-Piranha will get the results of the google search , and add information on the pages it links to.
- An XML file (including RSS feeds) , either on disk or over the web.
- Favourites / Bookmarks folders - Red-Piranha will index the web pages that these favourites point to.
Adding information can take anything from a few milliseconds , depending on the amount of information being added. Once added, Red-Piranha will check on a regular basis to see if the information added has changed and re-index if required. Your information is now available to be searched.
To do a search , put the item you want to search for into the textbox and press search. Red-Piranha will show the search results on the screen. Clicking on the link beside the search results will show you the original information (as long as you have access to it).
From version 0.3 onwards , Red-Piranha can learn what search results you are interested in an improve your future searches. To give Red-Piranha feedback and help it learn what you are interested in , click on any of the links on the search results page. Red-Piranha makes a note of your choice , which is used to adjust the search results later.

libredblack is a library to provide the RedBlack balanced tree searching and sorting algorithm.

The algorithm was taken from the book "Introduction to Algorithms" by Cormen, Leiserson & Rivest. Frankly I never entirely understood it, but it most definately works!

What is the problem with normal binary trees?: A standard binary tree only works well if the original data is provided in a random order (random in terms of the key being sorted on). If however the data is provided in order, then the tree becomes very un-balanced and searches degrade into nothing more than a linked list.

How is the RedBlack tree different?: The RedBlack tree acts in a way to keep the overall tree fairly balanced as new data is loaded in.

How does it work?: The tree is always organised such that it has the following properties:

Every node is either Red or Black.

A leaf node (a dummy empty node at the end of the tree) is always Black.
If a node is Red then its children are Black.

Every path from the root to a leaf contains the same number of Black nodes.
So from 3 & 4 above, we can see that the longest path (alternating Red and Black nodes) is only twice as long as the shortest path (all Black nodes). Thus the tree remains fairly balanced.

Great! How does it maintain those properties?: Ah, well, thats where I get a bit hazy. I know that it does this by adding Red nodes and then rotating the tree elements and changing the colours to sort out times when two Red nodes become parent-child (breaking rule 3).

Snoopy vs. the Red Baron is an open-source one/two player combat game, available for Mac OS X, Linux, BeOS, QNX and Windows.
The original Snoopy was a tiny game for the Apple Macintosh, with black and white graphics, but already almost all the levels of the new Snoopy/SDL were implemented.
Snoopy could be played by two opponents, sharing a single screen and keyboard, and although it had poor graphics and tough controls, we very much liked to play it.
While we learned programming, we constantly sought for simple, yet interesting projects. If you have ever tried to learn a new language or API, you will have recognized that the simplest way in mastering the stuff is simply reprogramming an existing application, without losing much thought on design and originality.
So my friend reprogrammed Snoopy, in Object Pascal, using SAT, the Sprite Animation Toolkit, on his Classic II. That version of Snoopy features a fully functional AI, network play, but only the first level ( weapons drop).
While he was at it, he also implemented a "missing feature", the bombs, for which there where graphics and sounds in the game, but which could not be thrown.
When I discovered SDL, I recognized that it would be ideal for the job. Running on Windows, Linux, MacOS, BeOS and many other platforms, it is my new toolkit of choice for multimedia programming. It took us several weeks to port Snoopy (besides going to school, but now the work is almost done, with only the finishing touches to be made.
I can only encourage everyone to try SDL; it is really easy and portable (if worked right).

tenmado project is a hard-core shoot em up game in a blue-or-red world.

tenmado is a vertically scrolling, late 1990s style (i.e., a massive number of enemy shots against a smaller-than-it-looks spaceship) shoot em up game.

A very accurate collision detection makes it a game of dexterity. If something looks like a triangle, it is a triangle, not a rectangle of similar size.

However, surviving is only 20% of the game. The main feature of tenmado is the "color chain bonus".

You can get a very big score (about 100 times bigger than a normal enemy-destruction point) by destroying enemies of the same color successively.

It is easy or difficult depending on how greedy you are.

remerge is a simple browser-based interface to Gentoo Linuxs Portage and Novells Red Carpet package management systems.
It supports installation, uninstallation, and upgrading of many different packages.
Enhancements:
- An installation script glitch was fixed.