Free widely known software for linux

Drivel is a GNOME client for working with online journals, also known as weblogs or simply blogs.

Drivel retains a simple and elegant design while providing many powerful features, including support for LiveJournal, Blogger, Movable Type, Advogato, and Atom journals. (Systems based off these are also supported, including WordPress and Drupal.)

FreeTpl PHP Shopping Cart supports Downloadable products with instant activation option, especially useful for software companies selling their products via the Internet & could be easily integrated into any system widely utilizing the power of templates and web-administration tools.

Shopping Basket with advanced Sales Mechanisms (Products reviews and ratings, Discounts mechanism, Shipping and Stock mechanisms, etc), Web-based Administration with Order Maintenance, Product Maintenance, User/Shopper Maintenance, multiple payment processing capabilities (including support of Verisign, Paypal and Authorize.net payment systems). The project provides an easy, quick and flexible web interface that allows adding high performance Shopping basket to your web site.

Perl is a stable, cross platform programming language. Perl project is used for mission critical projects in the public and private sectors and is widely used to program web applications of all needs.
Main features:
- Perl is a stable, cross platform programming language.
- It is used for mission critical projects in the public and private sectors.
- Perl is Open Source software, licensed under its Artistic License, or the GNU General Public License.
- Perl was created by Larry Wall.
- Perl 1.0 was released to usenets alt.comp.sources in 1987
- PC Magazine named Perl a finalist for its 1998 Technical Excellence Award in the Development Tool category.
- Perl is listed in the Oxford English Dictionary.
- Perl takes the best features from other languages, such as C, awk, sed, sh, and BASIC, among others.
- Perls database integration interface (DBI) supports third-party databases including Oracle, Sybase, Postgres, MySQL and others.
- Perl works with HTML, XML, and other mark-up languages.
- Perl supports Unicode.
- Perl is Y2K compliant.
- Perl supports both procedural and object-oriented programming.
- Perl interfaces with external C/C++ libraries through XS or SWIG.
- Perl is extensible. There are over 500 third party modules available from the Comprehensive Perl Archive Network (CPAN).
- The Perl interpreter can be embedded into other systems.
- Perl is the most popular web programming language due to its text manipulation capabilities and rapid development cycle.
- Perl is widely known as "the duct-tape of the Internet".
- Perls CGI.pm module, part of Perls standard distribution, makes handling HTML forms simple.
- Perl can handle encrypted Web data, including e-commerce transactions.
- Perl can be embedded into web servers to speed up processing by as much as 2000%.
- mod_perl allows the Apache web server to embed a Perl interpreter.
- Perls DBI package makes web-database integration easy.

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.

Encode is a Perl module created to deal with character encodings.

SYNOPSIS

use Encode;

Table of Contents

Encode consists of a collection of modules whose details are too big to fit in one document. This POD itself explains the top-level APIs and general topics at a glance. For other topics and more details, see the PODs below:

Name Description
--------------------------------------------------------
Encode::Alias Alias definitions to encodings
Encode::Encoding Encode Implementation Base Class
Encode::Supported List of Supported Encodings
Encode::CN Simplified Chinese Encodings
Encode::JP Japanese Encodings
Encode::KR Korean Encodings
Encode::TW Traditional Chinese Encodings
--------------------------------------------------------

The Encode module provides the interfaces between Perls strings and the rest of the system. Perl strings are sequences of characters.

The repertoire of characters that Perl can represent is at least that defined by the Unicode Consortium. On most platforms the ordinal values of the characters (as returned by ord(ch)) is the "Unicode codepoint" for the character (the exceptions are those platforms where the legacy encoding is some variant of EBCDIC rather than a super-set of ASCII - see perlebcdic).

Traditionally, computer data has been moved around in 8-bit chunks often called "bytes". These chunks are also known as "octets" in networking standards. Perl is widely used to manipulate data of many types - not only strings of characters representing human or computer languages but also "binary" data being the machines representation of numbers, pixels in an image - or just about anything.

When Perl is processing "binary data", the programmer wants Perl to process "sequences of bytes". This is not a problem for Perl - as a byte has 256 possible values, it easily fits in Perls much larger "logical character".

Gettext Commons project provides Java classes for internationalization (i18n) through GNU gettext.

The lightweight Gettext Commons library combines the power of the Unix-style GNU gettext tools with the widely used Java ResourceBundles. We find that the usual Java i18n approach of using custom property keys rather than the original text is cumbersome to use and makes programs harder to read.

All user visible text is replaced by arbitrary keys complicating lookups of strings in the source.

There are a few more advantages of using gettext:

- Easy extraction of user visible strings
- Strings are marked as fuzzy when the original text changes so translators can check if the translations still match
- Powerful plural handling
- Build process integration through Maven

Flight Navigation Planner project is a tool for making flight plans based on known airports.

Flight Navigation Planner lets you make flight plans based on known airports, navaids, fixes, or cities.

You can use the sectional charts, wacs, or the vector/terrain planning charts.

It calculates headings, winds, time, and fuel. It features Airways-based Auto-Routing, Climb and Descent calculations (a/c type based), Fuel Stop Planning, Auto-Route around MOAS and Restricted Airspace, Hi-Res Weather Radar Overlay, Viewing of current sectional, wac, and IFR charts, the ability to see a route over TFRs, detailed nexrad radar overlays over your routes, Terrain Profiles with cloud ceilings, and the ability to upload flight plans to GPS.