All the packages included on the CD-ROM are discussed somewhere in the book, complete with an icon in the margin to let you know it's there. But here's a quick listing of what each program does and where the book talks about it.
If you don't have the disc or just want another way to get them,
many of the programs and other files are available on the Internet
or via email.
Many of the programs listed here are shell scripts. All shell scripts are theoretically portable from one platform to another; however, they might have dependencies on programs that either aren't installed on your system, or behave somewhat differently from what the programmer expected. So beware that you might have to tweak the shell scripts a little to make them work correctly on your system.
Also beware that some scripts written in awk