Test if a webpage exists

curl --head http://google.com
# or, the same:
curl -I http://google.com

Sample output:

HTTP/1.1 301 Moved Permanently
Location: http://www.google.com/
Content-Type: text/html; charset=UTF-8
Date: Tue, 24 Jan 2012 20:22:14 GMT
Expires: Thu, 23 Feb 2012 20:22:14 GMT
Cache-Control: public, max-age=2592000
Server: gws
Content-Length: 219
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN

For a pure Python solution, check out this post.

This tip is from here.

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