Free most widely known software for linux

Scid project consists of a chess database.

Scid is a powerful chess database application with many search features.

Its GUI makes entering chess games fast and easy, and you can search games by exact position, material, player names, and many other criteria.

It does not come with any actual file of chess games, but it can convert databases to/from the popular PGN format which is widely used for chess games.

OSCAR version 4.0 is a snapshot of the best known methods for building, programming, and using clusters. OSCAR Cluster project consists of a fully integrated and easy to install software bundle designed for high performance cluster computing.

Everything needed to install, build, maintain, and use a modest sized Linux cluster is included in the suite, making it unnecessary to download or even install any individual software packages on your cluster.

TilEm is a TI Calculator Emulator.
Main features:
- All Z80 TI calculators (73, 82, 83, 83+, 83+ SE, 84+, 84+ SE, 85, and 86) except the TI-81, and all known ROM/OS versions
- Virtual linking (through libticables)
- Flash writing and erasing
- Application and OS loading
- Much more!

GeboGebo is a wiki system written for tdbengine. It stores all data in a local database structure and thus provides an indexed fulltext search.
GeboGebo is available for free download. It runs on Linux and with a little handwork on Windows 32-Bit as well. The name GeboGebo derives from the Germanic rune gebo, which means as much as "Giving and taking". This is the philosphy of a WikiWiki and is so perfectly with this name.
Due to massive spamming we decided to lock pages for anonymous edit. If you would like to test GeboGebo please register and then login or use the user account "Guest" whose password is "Guest". The sandbox is waiting for you to play around.
For installation of GeboGebo:
Ensure you have a working tdbengine installation. If you dont, better read those Link instructions or this Link German tutorial for IIS setup (with loads of screenshots).
unpack the gzipped tar-archive into your www-root directory
enter the gebo directory on console and run ./make.sh
open your web browser and enter the URL leading to your GeboGebo installation directory
Main features:
- The Automatic Link System links pages by their names without explicitely having to be marked as link
- GeboGebo stores all data in a database structure providing high performance data access by using intelligent indexes.
- brings its own mini http server which makes installation very easy
- The indexed fulltext search makes information retrieval a breeze.
- Pages can be renamed at any point of time, without any loss of information.
- All activities get locked and earlier revisions of pages can be restored from each pages infinite history.
- GeboGebo is capable of providing all information as static pages for faster read access and better indexing possibilities for 3rd party diggers.
- The user management is simple but effective: allow or disallow anonymous access in whole or for several pages and enable or disable self registration of new users.
- The User list provides information on registered users and points to their personal wiki pages.
- A list of missing and a list of unreferenced pages help filling content gaps in your wiki
- Fill a blacklist with patterns of wiki page names that may not be edited, if already existing, or even may not be created, if they do not already exist.
- File and Image uploading makes GeboGebo the perfect system for your simple document management.
- Users can subscribe to pages and get informed via EMail when those pages are changed.
- RSS feeds for your news aggregator
- Namespaces support you in dividing your Wiki into independend sections.
- Macros and plugins open all possibilities of tdbengine programming to you and your Wiki
- Link meatball>InterWiki links help you to reference information in other widely known wikis
- GeboGebo is released under the terms of the GNU General Public License (GPL).
Enhancements:
- due to a missing sub directory the minihttp server could not start before gebogebo had been running at least once on another web server before. Fixed.
- new switch CreateStaticIndex in the configuration now allows decisions made concerning the automatic index.html file creation (thanks for the tip to Malcolm)
- bug fix for the subscription list which before returned a blank page caused by an internal error (thanks to Malcolm)

Program D is the most widely used free ("open source") AIML bot platform in the world. Program D project is the most feature-complete, best-tested implementation of the current AIML specification.
It supports unlimited multiple bots in a single server instance, and has an open-ended architecture for interacting via any interface imaginable. The standard release provides a J2EE web application implementation that can be deployed as a .war file. Drop-in listeners are available for IRC, ICQ/AIM, and Yahoo.
It includes an automated testing framework for testing knowledge bases, and is packaged with an AIML Test Suite that verifies that the program itself complies to the AIML specification.
Program D is known to work with many different languages / character sets.
Its component-oriented architecture allows it to be integrated into any application framework desirable. It is implemented in Java, and uses many features of the latest JDK to provide optimum code reliability. It is actively maintained and supported.
Enhancements:
- This is a highly-recommended release which introduces some interesting performance improvements, fixes a number of important bugs, and brings some major architectural improvements.
- Most notably, Program D can now be deployed as a .war file to a Web application server, and can interact with a Web client using "AJAX" technologies.
- This final release follows three release candidates which ironed out a few minor issues.

GNU Wget is a free software package for retrieving files using HTTP, HTTPS and FTP, the two most widely-used Internet protocols.
It is a non-interactive commandline tool, so it may easily be called from scripts, cron jobs, terminals without Xsupport, etc.
Main features:
- Can resume aborted downloads, using REST and RANGE
- Can use filename wild cards and recursively mirror directories
- NLS-based message files for many different languages
- Optionally converts absolute links in downloaded documents to relative, so that downloaded documents may link to each other locally
- Runs on most UNIX-like operating systems as well as Microsoft Windows
- Supports HTTP and SOCKS proxies
- Supports HTTP cookies
- Supports persistent HTTP connections
- Unattended / background operation
- Uses local file timestamps to determine whether documents need to be re-downloaded when mirroring
- GNU wget is distributed under the GNU General Public License.
Enhancements:
- A buffer overrun in the NTLM code was fixed.

syslog-async project is a non-blocking syslog() replacement.

It is not widely known that the standard Unix syslog() library routine can block waiting for the syslog daemon, but it is generally true. On some systems, using a datagram socket for /dev/log avoids endless waits, but on Linux, even this does not work. Try typing

killall -STOP syslogd

into a root terminal on a non-critical box: Eventually, everything will stop.

This library provides a version of syslog() which never blocks: the code was originally written for dnsmasq, to fix a deadlock between syslod and dnsmasq where syslogd uses dnsmasq for DNS, and dnsmasq uses syslogd for logging. It should be generally useful for any daemon where its more important that the daemon continue to function than that it continue to log.

The code has been tested on Linux 2.6, OpenBSD 4.0 and FreeBSD 6.0. It has been run with syslogd and syslog-ng. Note that it is not, currently, threadsafe.

The header file, syslog_async.h is extensively commented, and details how to use the library. It is, as far as possible, API compatible with the POSIX-standard syslog.