How to poll simple website for updates?
I have a professor who randomly updates his website with homework due tomorrow and seems to expect us to check it every hour.
This sounds like a job for a program.
His website is simple and entirely html, not even a开发者_运维百科ny javascript. How could I programatically detect any changes/updates to his website?
Check the Last-Modified
Response header.
Fetch and md5 the content of each page. Then store and compare with previous values. Note that this is sensitive down to the character level.
Alternativelly, setup a Google Alert for site:your-professors-website.com
and have the updates delivered to your email or via rss.
setup a cron job to periodically wget or curl the URL, then grep for relevant text, then send yourself an email if interesting results are found...
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