XSel is a command-line program for getting and setting the contents of the X selection. It can also append and have it follow a growing file (similar to tail -f).

This package provides a graphical program for learning Japanese characters, which also doubles as a dictionary lookup program. It requires a dictionary package, such as kanjidic (for learning kanji) or kanadic (for learning hiragana or katakana), although you can specify a custom dictionary file on the command line.

MathJax was designed with the goal of consolidating the recent advances in web technologies into a single, definitive, math-on-the-web platform supporting the major browsers and operating systems.

IPTraf-ng is an ncurses-based IP LAN monitor that generates various network statistics including TCP info, UDP counts, ICMP and OSPF information, Ethernet load info, node stats, IP checksum errors, and others.

Nikto is a pluggable web server and CGI scanner written in Perl, using rfp's LibWhisker to perform fast security or informational checks.