Designed for users who already know how to build a Web page, this book demonstrates the techniques for adding programs called Common Gateway Interfaces (CGIs) to their Web sites. Hands-on examples start with the absolute basics such as where to write scripts, how to upload them and set file permissions, and how to run them. More advanced topics like processing forms, reading and writing data files, and interacting with databases are also shown in clear examples. Also included are tutorials on UNIX and how to password-protect a Web site.