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Perl Server Side CGI Scripting Forum

    
Creating/Setting up a web crawler or spider
How to do it, what to use, any suggestions?
firedancer5




msg:430822
 9:31 pm on Aug 19, 2005 (gmt 0)

I am trying to set up a simple webcrawler that goes out and crawls specific urls. Could someone point me in the right direction, I have never configured or built a crawler before. I could use a nudge in the right direction. I found some stuff on WGET but I am not sure if that is the right approach. Any suggestions would be helpful in my quest for information on creating or configuring one. Thanks!

 

dlefree




msg:430823
 1:05 am on Aug 20, 2005 (gmt 0)

[chat11.com ]

This website offers an exhaustive number of links regarding spider development (including some free spider implmentations).

I'd recommend that you consider a PHP solution if this is one of your first projects - you'll find tons of helpful documentation at:

[us3.php.net ]
[webreference.com ]

lexipixel




msg:430824
 11:00 pm on Aug 20, 2005 (gmt 0)

Search CPAN for LWP::UserAgent it should have everything you need to set up a simple crawler.

SeanW




msg:430825
 4:27 pm on Aug 21, 2005 (gmt 0)

There are two indespensible books by O'Reilly... LWP & Perl, and Spidering hacks.

The first talks about building spiders and parsing pages. The second really gets into the specifics of getting information out of pages.

Others have mentioned using PHP and LWP. I really recommend WWW::Mechanize. It's based on LWP, so you can always revert back to it, but it adds a bunch of things to easily follow links and submit forms.

Sean

wdr1




msg:430826
 6:56 am on Aug 22, 2005 (gmt 0)

In addition to LWP::UserAgent, but sure to also check out LWP::Simple & the LWP cookbook.

[search.cpan.org...]
[search.cpan.org...]

Stuart_S




msg:430827
 12:31 am on Sep 4, 2005 (gmt 0)

Check out LWP::RobotUA

See some other posts: [webmasterworld.com...]
[webmasterworld.com...]

Great book: ISBN 0-596-00313-7

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