You could write a simple CGI that displays $ENV{PATH_TRANSLATED}, which is the filesystem translated path for a given PATH_INFO. Then feed your requested URLs one at a time as the path-info, like get "http://your-server/cgi/your-script/path/you/want/to/translate".

But you should also note that a URI does not necessarily have a corresponding path. There are many URLs on stonehenge.com for example that do not correspond to filesystem resources. So be sure you're asking the right question before you aim for answers.

-- Randal L. Schwartz, Perl hacker
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