title: Get Wordpress Category Slug
body: <p>I was wondering if there is any Wordpress function out there which returns the slug of a category by passing it's name. 
  Something like: </p>
  
  <p><a href="http://blog.com/categoryName/slug" rel="nofollow">http://blog.com/categoryName/slug</a></p>
  
  <p>Or anything like that.</p>
  
  <p>Thank you!</p>