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Sams Teach Yourself CGI in 24 Hours, Second Edition by Rafe Colburn

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Debugging CGI Scripts

Some people would say that the toughest step in the process of creating an application is debugging it after all the functionality that you wanted is, in theory, complete. Certainly working out all of the nagging bugs in an application can take as long as getting the main functionality written.

One problem with CGI scripts is that they exist as part of a larger system. The actual CGI program is just one component of the system; there’s also the operating system, the Web server, and the network connection between the Web browser and the Web server. A problem can occur with any of these components, and one of the toughest tasks facing a CGI programmer is determining where a problem occurred.

In many cases, problems crop up ...

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