Free widely software for linux

Berkeley DB (libdb) is a programmatic toolkit that provides embedded database support for both traditional and client/server applications. Berkeley DB includes b+tree, queue, extended linear hashing, fixed, and variable-length record access methods, transactions, locking, logging, shared memory caching, database recovery, and replication for highly available systems.
Berkeley DB delivers the core data management functionality, power, scalability and flexibility of enterprise relational databases but without the overhead of a query processing layer. Combined with the stability and lower support cost of open source code, Berkeley DB offers many advantages
DB supports C, C++, Java, PHP, and Perl APIs. It is available for a wide variety of UNIX platforms as well as Windows XP, Windows NT, and Windows 95 (MSVC 6 and 7).
Sleepycat Software makes Berkeley DB, the most widely used open source developer database in the world with over 200 million deployments. Customers such as Amazon.com, AOL, British Telecom, Cisco Systems, EMC, Google, Hitachi, HP, Motorola, RSA Security, Sun Microsystems, TIBCO and VERITAS also rely on Berkeley DB for fast, scalable, reliable and cost-effective data management for their mission-critical applications. Profitable since it was founded in 1996, Sleepycat is a privately held company with offices in California, Massachusetts and the United Kingdom.
Here are the advantajes of "Berkeley DB":
- Zero administration cost ? eliminates the need for a DBA;
- Smaller footprint (less than 500Kb);
- Simplicity of integration into an application;
- More speed and higher performance;
- Less complexity and more reliability.
Berkeley DB is distributed under an open source license that permits its use in open source applications at no charge. Proprietary vendors can purchase a proprietary license for Berkeley DB from Sleepycat Software.
Other important key features of "Berkeley DB":
- Includes complete source code.
- Small footprint ? less than 500 kilobytes.
- Extremely configurable: application controls the memory, disk, and other resource requirements of the database library.
- Easy-to-use APIs for applications written in C, C++, Java, Perl, Python, Tcl, PHP.
- Supports full transaction semantics, so that multiple changes can be applied or rolled back atomically.
- Survives software and hardware failures without losing data.
- Fine-grained locking allows thousands of users to work with a database at the same time.
- Replication for high availability keeps copies of the database synchronized across multiple servers. If the master or any replica goes down, one of the remaining replicas can take over.

DictEm is an extremely customizable DICT client for (X)Emacs. DictEm implements all functions of the client part of the DICT protocol (RFC-2229).
Unlike dictionary.el, it widely uses autocompletion that is used for selecting a dictionary and search strategy. It provides several hooks that may be used for buffer postprocessing.
Built-in hyperlinking and a highlighting mechanism are based on this ability. It supports the mechanism of virtual dictionaries that can be used for grouping dictionaries from different DICT servers into the client-side virtual dictionary.
Enhancements:
- - dictem-server variable can be equal to nil, in this case dict command line tool will be called without -h option, i.e. default _list of servers_ specified in .dictrc (or dict.conf) will be used.
- dict:///dictionary_name (in dictem-user-databases-alist) also means that default server list will be used, see Ex.4 for the sample of use.
- dictem-server variable now defaults to nil, old value was "dict.org". dictem-strategy-alist and dictem-database-alist also defaults to nil.

Tmxxine is a linux distribution based on Puppy Linux 2.01.
Main features:
- All standard puppy software included: WP, Spreadsheet, Browser, editors, painting, vector editor, email, ftp, chat etc
- Voice Synthesis At the moment the Operating system is not singing to you but the Symphony code is being used. "Flinger" is being considered for future versions. Right clicking on an icon and opening it as text will give you this. The talk command says the word - change the words to have the computer say what you want
- Audacity sound editor. Very stable. Also available for Windows.
- Xara graphics - 50% complete - very usable. Sadly the enclosed nightly build is unstable (first time) for a stable version try here?
- NVU WSIWYG HTML editor. NVU is more powerful than composer on which it is based. Tmxxine has made a commitment to create its documentation in wiki format. This tool is for temporary deployment.
- 007 blowfish single file encryption. This only works on single files. It is only two lines of code
- Java. Widely used, the third most important language after C and C++ It allows access to java enabled web sites - many scientific sites make use of it.
- Extra codecs for viewing movies through the Internet
- Mplayer - be careful with this - crashed my machine from within dotpup menu
- VYM - View Your Mind. A Mind mapping thought generation tool
- Tuxcard - organise you bits of information
- Xfce Window manager, Shut down / exit to prompt and then type xwin xfce To return reboot Xfce and then type xwin jwm

jGetFile project is geared towards mass downloading specifically non-html files from the web. Web crawlers and website downloads are widely available and work very well. Not all web-based file crawlers are equal however.

Few file crawers handle this href scenario: < a href="http://www.foo.com?url=http://youreallywantthislink.com/files" >< /a > jGetFile was engineered to be able to handle as many extraneous href configurations as possible. Although it does not handle all possible cases, more will be supported in future releases.

jGetFile supports a highly configurable means to filter the acceptance of links within the program. A user can use the -i or -e options to have the program only traverse links that start with the addresses the user specified, or to exclude links that start with the specified addresses.

Alternatively, for the powerusers, one can specify a BeanShell script through the -als option. This allows for abritrarily complex rules to be specified for accepting links, like accept only links at depth 1 that begin with www.blah.com, exclude links at level 2 that begin with www.foo.com, and exclude links at level 2 that contain word cat. The depth variable is currently not available to custom scripts, but will be in the next release.

There is no gui in the works, and because of the intended simplicity of this program, one is not planned in the future either. Also, jGetFile is not intended to replace wget, although its initial features were based on wget. jGetFile has the single goal of downloading files fast and efficiently from the web.