Docker - Ubuntu - bash: ping: command not found : <p>I've got a Docker container running Ubuntu which I did as follows:</p>

<pre><code>docker run -it ubuntu /bin/bash
</code></pre>

<p>however it doesn't seem to have <code>ping</code>. E.g.</p>

<pre><code>bash: ping: command not found
</code></pre>

<p>Do I need to install that?</p>

<p>Seems a pretty basic command to be missing. I tried <code>whereis ping</code> which doesn't report anything.</p>
