title: How to display all TODO items from a single file
body: <p>I am still new to org-mode and emacs, so please forgive me for asking such a simple question.</p>
  
  <p>I organise my <code>org-mode</code> files one per area of interest: so I have one for work, one for personal projects, etc. These files contain both notes and <code>TODO</code> entries, so it's really hard to see all the <code>TODO</code> items in the given file...</p>
  
  <p><strong>So here is my question:</strong></p>
  
  <p>Is there an easy way to easy <em>filter all the todo items in agenda view by file they are in</em>? </p>
  
  <p>The only way I can think of right now is by using a special tag per file, but this will require me to update all files and all entries it's quite a lot of work I would prefer to avoid.</p>
  
  <p>Thanks!</p>