title: Using Str module in OCaml top level?
body: <p>I tried two commands to load Str Module in OCaml top level.
  The first command gives me the error "Cannot find file Str.cmo".
  I then tried to use the file i was using in top level with the second command. With that command i got "Reference to undefined global Str".</p>
  
  <pre><code>#load "Str.cmo";;
  
  #use "my_file.ml";;
  </code></pre>
  
  <p>What do i need to do to successfully load Str module in OCaml top level.</p>