title: Why does the name column of the docker ps -a always different
body: <p>I was just playing around with docker!!</p>
  <p><strong>Ran ps command -a option</strong></p>
  <pre><code>docker run -a
  C:\Users\sarkan1&gt;docker ps -a
  CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMES
  3d6db385321c        busybox:1.24        &quot;sleep 1000&quot;        26 seconds ago      Up 24 seconds                                   lucid_ramanujan
  e6acd65398b2        hello-world         &quot;/hello&quot;            43 minutes ago      Exited (0) 43 minutes ago                       nifty_brattain
  c5576137580d        hello-world         &quot;/hello&quot;            4 days ago          Exited (0) 4 days ago                           dreamy_aryabhata
  2594fbf1fa82        hello-world         &quot;/hello&quot;            4 days ago          Exited (0) 4 days ago                           nostalgic_hopper
  c0102bc64c45        hello-world         &quot;/hello&quot;            4 days ago          Exited (0) 4 days ago                           vibrant_khorana
  c4af79ea96e9        hello-world         &quot;/hello&quot;            4 days ago          Exited (0) 4 days ago                           cranky_heyrovsky
  </code></pre>
  <p>Questions :</p>
  <ol>
  <li><p>Why did I get the values in the names column always different? I ran the same container I guess!!</p>
  </li>
  <li><p>What is command column? Does the slash before the hello (<code>/hello</code>) have  any significance?</p>
  </li>
  </ol>