http://myurl.com/search/stringA?SomeMoreStuffA
http://myurlA.com/search/stringB?SomeMoreStuffB
http://myurlB.com/search/stringC?SomeMoreStuffX
http://myurlC.com/search/stringA?SomeMoreStuffXYZ
http://myurl.com/search/stringZ?SomeMoreStuffZZZ

##</code><code>##

$URL =~/search/(.+)\?
my($searchString) = $1;