title: What solr -s option does?
body: <p>What does the -s option in the below solr command do?</p>
  
  <pre><code>solr start -p 8983 -s "../example/techproducts/solr"
  </code></pre>
  
  <p>Second, if I run the command <code>solr -e techproducts</code> as mentioned in this <a href="http://www.solrtutorial.com/solr-in-5-minutes.html#Install" rel="nofollow noreferrer">http://www.solrtutorial.com/solr-in-5-minutes.html#Install</a> after the solr is already started it gives an error that "<em>an instance of solr is already running</em>"</p>