title: Equivalent in git of "hg cat" or "svn cat"
body: <p>I want to extract a copy of the latest version of a file held in a git repository, and pass it into a script for some processing.  With svn or hg, I just use the "cat" command:</p>
  
  <blockquote>
    <p>Print the specified files as they were at the given revision. If
    no revision is given, the parent of the working directory is used,
    or tip if no revision is checked out.</p>
  </blockquote>
  
  <p>(that's from the description of hg cat in the hg documentation)</p>
  
  <p>What's the equivalent command to do this with git?</p>