title: compare mongodb database schema, apply difference
body: <p>I know mongodb doesn't have schema as such but i am not sure what to call it. Database structure?</p>
  
  <p>My question is... Is there a tool or way to compare two or more databases in mongodb to get the difference and apply the changes.
  Not the data.
  Just the structure such as indexes.</p>
  
  <p>Example: Lets say i have 5 databases for different clients, and i decide i want to create a new index in one of the collections. I want to then apply that change to all my other databases with ease.</p>