DBA_Dialog is a dialog interface to the four major RDMS (Oracle, DB2, PostgreSQL and MySQL). It is written in bash, and uses the dialog and Xdialog facility to let a DBA perform various administration tasks. It has been written to let people access a local or network database with a lightweight client that requires neither a GUI nor a Web server. It has only been tested on Linux, with PostgreSQL and MySQL databases.
IRMP3 is a multimedia audio jukebox for Linux. IRMP3's strength is that it easily integrates into home, car, and mobile environments (where a keyboard/screen interface may not always be available). It supports several input and display devices such as infrared remote controls, LCD displays, network connections, and serial keypads. It includes a robust set of tools like alarms, sound environments, mixers, sleep functions, and more. It supports MP3 players and network-ready control & status monitoring, and includes a flexible, modularized source which allows functionality to be easily extended with user-developed code.
DFBKana is a small DirectFB program to help you learn Japanese kana (hiragana and katakana). You will be presented a kana character and you have to guess the pronounciation by selecting the apropriate romanji field in the romanji grid window. There are also some other guess modes (show hiragana, guess katakana and vice versa). The program uses nice colors to visualize which characters you know well and which you don't.
Kadet is a multi-threaded, multi-purpose server written in C. It is highly extensible, well written, and equipped with a great set of libraries including built-in scripting, a persistent database, object memory management, etc. It is very easy to develop. The server protocol is currently HTTP/1.1. SSL is supported via OpenSSL.
Unarc unpacks an archive and creates a top-level directory to unpack into if it's needed. Unarc works with lots of archives, not just tarballs (bz2, zip, and even rpm are supported). There is a companion program arcdir which provides a uniform way to archive directories into tarfiles, zipfiles, etc.