title: not found [No such file or directory] error, even though the file present in that directory on RH Linux 6.2
body: <p>When I’m executing a script from Linux (RH Linux 6.2), it is giving not found [No such file or directory] error, even though the file is present in that directory (checked the permissions and they are fine).</p>
  
  <p><strong>Example:</strong></p>
  
  <pre><code>md1silinux04:/data/upgrade&gt; /data/upgrade/upgrade_db.ksh
  -ksh: /data/upgrade/upgrade_db.ksh: not found [No such file or directory]
  
  md1silinux04:/data/RAIL/rpo402/db/upgrade&gt; ls /data/upgrade/upgrade_db.ksh
  /data/upgrade/upgrade_db.ksh
  </code></pre>
  
  <p>Could anybody please help on this ?</p>