title: File/Command not found while running "hadoop version" command. Hadoop installation
body: <p>I'm following Micheal Noll tutorial for installing hadoop.
  I followed every step as it is.
  But while executing "hadoop version" command in root, I get two errors :</p>
  
  <pre><code>/usr/local/hadoop/hadoop-common-project/hadoop-common/src/main/bin/hadoop:
  line 26:     
  /usr/local/hadoop/hadoop-common-project/hadoop-common/src/main/bin/../libexec/hadoop- config.sh: No such file or directory
  /usr/local/hadoop/hadoop-common-project/hadoop-common/src/main/bin/hadoop: 
  line 133:
  exec: : not found
  </code></pre>
  
  <p>Thank you.</p>
  
  <p><strong>UPDATE</strong>
  I found the solution to the problem. I was working on Hadoop 2.x version instead of 1.2 or other stable versions. As I re-installed the stable version, it started working without any errors. </p>