Python, the high-level, interactive object oriented language, includes an extensive class library with lots of goodies for network programming, system administration, sounds and graphics.

Nautilus is the official file manager for the GNOME desktop. It allows one to browse directories, preview files and launch applications associated with them. It is also responsible for handling the icons on the GNOME desktop. It works on local and remote filesystems.

The Mobile Robot Programming Toolkit (MRPT) is an extensive, cross-platform, and open source C++ library aimed to help robotics researchers to design and implement algorithms in the fields of Simultaneous Localization and Mapping (SLAM), computer vision, and motion planning (obstacle avoidance).

FSlint is a toolkit to clean filesystem lint. It includes a GTK+ GUI as well as a command line interface and can be used to reclaim disk space. It has an interface for uninstalling packages, and it can find things like:

SQLite Database Browser is a visual tool used to create, design and edit database files compatible with SQLite. Its interface is based on QT, and is meant to be used for users and developers that want to create databases, edit and search data using a familiar spreadsheet-like interface, without the need to learn complicated SQL commands. Controls and wizards are available for users to: - Create and compact database files - Create, define, modify and delete tables - Create, define and delete indexes - Browse, edit, add and delete records - Search records - Import and export records as text - Import and export tables from/to CSV files - Import and export databases from/to SQL dump files - Issue SQL queries and inspect the results - Examine a log of all SQL commands issued by the application