Build a Web spider on Linux

Build a Web spider on Linux

This tutorials shows you how to build spiders and scrapers for Linux to crawl a Web site and gather information

Tuesday, June 05, 2007

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Web spiders are software agents that traverse the Internet gathering, filtering, and potentially aggregating information for a user. Using common scripting languages and their collection of Web modules, you can easily develop Web spiders.

A spider is a program that crawls the Internet in a specific way for a specific purpose. The purpose could be to gather information or to understand the structure and validity of a Web site. Spiders are the basis for modern search engines, such as Google and AltaVista. These spiders automatically retrieve data from the Web and pass it on to other applications that index the contents of the Web site for the best set of search terms.

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