title: Why can't supervisor find command source
body: <p>The following is my <code>supervisor.conf</code>. </p>
  
  <pre><code>[supervisord]
  nodaemon=true
  
  [program:daphne]
  command=source "/opt/ros/indigo/setup.sh" &amp;&amp; daphne -b 0.0.0.0 -p 8000 robot_configuration_interface.asgi:channel_layer
  
  [program:worker]
  environment=DJANGO_SETTINGS_MODULE="robot_configuration_interface.settings"
  command= source "/opt/ros/indigo/setup.bash" &amp;&amp; django-admin runworker
  </code></pre>
  
  <p>This is the error I get:</p>
  
  <blockquote>
    <p>INFO spawnerr: can't find command 'source'</p>
  </blockquote>
  
  <p>Shouldn't the bash have the command source. If this is using <code>sh</code> how can I force it to run bash?</p>