newbie extracting same text from earch results

I am wondering which sample scripts may be able to do the following:

I have search result in google, in this search result I would like to be
able to extract certain text that are identified with a unique start and end
character/s into a text file, from each of the search result in google,
would anyone know which sample script could do this, or give me pointers
will be very much appreciated.



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