title: How can I remove tomcat 9 installation from my ubuntu 18.04 machine?
body: <p>What commands must I run so that I can unistall tomcat9 and install tomcat8.
  The reason I am doing this is that I cannot get fuseki.war to run as application. I get</p>
  
  <pre><code>FAIL - Application at context path [/fuseki] could not be started
  </code></pre>