title: Error while starting hadoop daemons
body: <p>I am new to hadoop as well as ubuntu and trying to install Hadoop 2.2.0 in (Ubuntu) on my system.
  When I tried to start the daemons using start-all.sh or start-dfs.sh, it throws an error saying "Command not found".
  I have issued this command as an user created under the hadoop group only.</p>
  
  <pre><code>&gt; hduser@nitk-OptiPlex-9010:~/hadoop-2.2.0/sbin$ start-all.sh
  &gt; start-all.sh: command not found
  </code></pre>
  
  <p>Can someone please help me out to resolve this issue?</p>
  
  <p>Also when I tried modifying the core-site, <strong>hdfs-site xml</strong> files under <strong>etc/hadoop</strong> folder, core-site.xml~, hdfs-site.xml~ files were created (New files with a tilde symbol at the end of their names got created). I deleted those new files created. Is this creating a problem?</p>