title: Docker's "executable file not found in $PATH: unknown" trying to run "cd"
body: <p>I've written the following <code>Dockerfile</code> which is supposed to run an arbitrary command (by providing one through arguments of <code>docker run</code>):</p>
  <pre><code>FROM ubuntu:20.04
  
  RUN apt -y update &amp;&amp; apt-get -y update 
  RUN apt install -y python3 git
  
  CMD bash
  </code></pre>
  <p>But when I'm trying to pass the command, e.g. <code>cd workspace</code> I get the following:</p>
  <pre><code>C:\Users\user&gt;docker run -it cloudbuildtoolset:latest cd workspace
  docker: Error response from daemon: OCI runtime create failed: container_linux.go:380: starting container process caused: exec: &quot;cd&quot;: executable file not found in $PATH: unknown.
  </code></pre>
  <p>What am I doing wrong?</p>
  <p>Please don't suggest me to restart my machine/docker/whatever</p>