This Appendix lists the source code for a number of programs that I used within the text of this book. Neither I nor Hewlett Packard will offer support for or take responsibility for any unexpected results from the use of these programs. These programs were used simply to demonstrate a specific technical point under discussion. They do not form any part of the HP-UX operating system, and no warranty can be granted under any such terms. The user is free to use and distribute this source code if he or she so desires, although no support or responsibility can be attributed to the original author.