Writing a log of page changes (bank rate) to a file. What to use?

Question

Monitoring

Maybe somehow I’m not google correctly ...
Parsing with the extraction of everything and everything is complete.
Change notifications of varying degrees of detail (instant) like dirt.
But I can't find anything to monitor on a schedule and throw it into the log.
I need to log numbers from some web pages from a win-computer. Automatic, scheduled

Answer 1

It is represented by windows, which throws numbers (bank rate) into a file (log) from pages (some) automatically on a schedule and monitors.