8WEBMASTER HACKS
In addition to offering a great environment for building nifty command line tools that work with various websites, shell scripts can change the way your own site works. You can use shell scripts to write simple debugging tools, create web pages on demand, or even build a photo album browser that automatically incorporates new images uploaded to the server.
The scripts in this chapter are all Common Gateway Interface (CGI) scripts, generating dynamic web pages. As you write CGI scripts, you should always be conscious of possible security risks. One of the most common hacks that can catch a web developer unawares is an attacker ...
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