CLIG - Command Line Interface Generator Clig is a code generator for several programming languages that allows you easy creation of command line parsers. Including a GUI and Command Line tool.
WESP is a collection of subtle scripts and programs written in several languages (C, /bin/sh, (g)awk, ruby, icon) that breaths a new life into the WEB system for literate programming by Donald Knuth (and CWEB by Knuth/Sylvio Levy).