[TriLUG] code needed for html search, please

[M. R.]

Assume:
     a domain, or directory thereof to be searched. E.g. mydomain.com, 
or mydomain.com/pretzels
     a web browser to point at it

Objective:
     names (url's) of all files/pages in which a specific string is found.
     In particular, a string like "star.png" repeated four times 
adjacent to each other. This would show on browsing such a file "****" 
or whatever other .png or .jpg one chose to search for.

Thanks for actual code or links to possible sources thereof. And a tip 
of the hat.