Cowsay is the easy way to add speaking and thinking cows (and a few other creatures) to anything. Any message you like, even in large figlet letters, can be rattled off by these ASCII critters. Cowsay comes with over 40 creatures that can be bent to your sick and twisted will. New "cows" can be easily bred by those versed in the appropriate dark arts. Cowsay is more useful than most of the items found in SkyMall catalogues, and a lot less expensive.
chpp is a general purpose preprocessor. It was designed originally for the purpose of preprocessing HTML code but can be used successfully in other fields of application as well. Highlights are, beside powerful language constructs, CGI-scripting support and an SQL database interface.
Ciao is a complete Prolog system subsuming ISO-Prolog with a novel modular design which allows both restricting and extending the language. Ciao extensions currently include feature terms (records), higher-order, functions, constraints, objects, persistent predicates, a good base for distributed execution (agents), and concurrency. Libraries also support WWW programming, sockets, and external interfaces (C, Java, TCL/Tk, relational databases, etc.). An Emacs-based environment, a stand-alone compiler, and a toplevel shell are also provided.
ccp can copy stdin or file to stdout, file to file, or files and directories into a directory. While copying, it applies one or several recodings. The program includes recoding tables for converting DOS text files into Unix text files, for filtering out control characters, and for conversions between Russian encodings (koi8-r, alt (cp866), win (cp1251), iso-8859-5, LaTeX T2A). You can easily write new recoding tables.
BlackMail is an Anti-Spam mailer proxy for use with popular MTA's like Sendmail, QMail, and SMail. It is highly configurable, very powerful, very fast, and runs on a large variety of platforms. It has undergone extensive testing, and this is the most stable release, now with Solaris support.
FileScanner is a Perl script which searches through directory trees and compares text file contents to a list of specified words and phrases. FileScanner outputs HTML-based reports which include statistics and clickable links to the pages it has found. Virtual hosts support for hosted domains is included.