mtr combines the functionality of the 'traceroute' and 'ping' programs in a single network diagnostic tool.

ed is a line-oriented text editor. It is used to create, display, modify and otherwise manipulate text files.

Crafty is the strong chess program played on ICC. It uses all of the search algorithms you have probably read about and performs better than gnu-chess in most positions. It has a reasonable set of features to use, and offers a great starting point to try your own new search extensions.

This package contains the runtime, shared library of expat, the C library for parsing XML. Expat is a stream-oriented parser in which an application registers handlers for things the parser might find in the XML document (like start tags).