title: Git diff with line numbers (Git log with line numbers)
body: <p>When I do a <code>git diff</code> or a <code>git log -p</code>, how do I get line numbers of the source file(s) inlined with the output?</p>
  
  <p>I tried to look it up <code>man git-diff | grep "line numbers"</code> and I tried googling but got nothing quickly.</p>