title: What Nutch command do I need to invoke from the command line if I update the url filter text
body: <p>Nutch Gurus,</p>
  
  <p>If I change files such as <strong>robots.txt</strong>, or <strong>regex-urlfilter.txt</strong> and any such resources, which command do I need to invoke?</p>
  
  <p>I was not sure from the nutch instructions. I am guessing it is parser job, but I am not sure.</p>
  
  <p>Kartik</p>
  
  <p>From the instructions</p>
  
  <pre><code># echo " crawl one-step crawler for intranets"
    echo " inject     inject new urls into the database"
    echo " hostinject     creates or updates an existing host table from a text file"
    echo " generate   generate new batches to fetch from crawl db"
    echo " fetch      fetch URLs marked during generate"
    echo " parse      parse URLs marked during fetch"
    echo " updatedb   update web table after parsing"
    echo " updatehostdb   update host table after parsing"
    echo " readdb     read/dump records from page database"
    echo " readhostdb     display entries from the hostDB"
    echo " elasticindex   run the elasticsearch indexer"
    echo " solrindex  run the solr indexer on parsed batches"
    echo " solrdedup  remove duplicates from solr"
    echo " parsechecker   check the parser for a given url"
    echo " indexchecker   check the indexing filters for a given url"
    echo " plugin     load a plugin and run one of its classes main()"
    echo " nutchserver    run a (local) Nutch server on a user defined port"
    echo " junit          runs the given JUnit test"
    echo " or"
    echo " CLASSNAME  run the class named CLASSNAME"
    echo "Most commands print help when invoked w/o parameters."
  </code></pre>