title: How to checkout most recently updated version of a file across all branches in Git?
body: <p>I've updated a file throughout my work on my Git repository on the <code>master</code> branch. I'm currently on another branch based on a much older commit to <code>master</code>, so the version of the file I'm seeing is out of date. I have not touched the file on my current branch. </p>
  
  <p>I want to checkout the fully-updated version of that file. I know that the most recently updated version of that file (even across all branches) is the one I want, but I do not know which commit that is. </p>
  
  <p><strong>Is there a way to checkout the most recently updated version of a given file across all branches and commits?</strong> (I'm hoping for a one-liner.) </p>