title: How to see which files were changed in last commit
body: <p>In this commit message, it says that 2 files have been changed. </p>
  
  <pre><code>$ git commit -m "fixed .gitignore"
  [master c30afbe] fixed .gitignore
   Committer: Sahand Zarrinkoub &lt;sahandzarrinkoub@n133-p41.eduroam.kth.se&gt;
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   2 files changed, 5 insertions(+), 4 deletions(-)
  </code></pre>
  
  <p>This is a little surprising for me. I thought I'd only staged one file to be changed. Now, I'd like to see which files have been changed and how. What is the way to do this?</p>