Trying to get the last part of a URL with Regex

Hi,

I'm trying to get search 404 going with a regular expression that would match anything after the last slash in my URL, as the first few components of my URL shouldn't be searched for.
Example below, I want to search for only 'url-alias-of-the-article'

http://example.com/lifestyle/article/url-alias-of-the-article

In another issue from drupal 6, they recommend to use this: ^(.*[\\\/])

But that is not working when entered in the PCRE filter field.