The words in the form are links to the help page for that option
WordFinder Software
The software that drives the WordFinder is a collection of Unix
shell scripts. Most of these scripts are available in my book,
Shell
Scripting Recipes: A Problem-Solution Approach (Apress, May
2005). You can run these scripts on any version of Unix, including
Linux, Solaris, and the various BSD implementations. They have not
been tested on Mac OS/X, but they should work there, too. (If you
try them, please let me know how they run.)