title: Oracle export using expdp gives ORA-29283: invalid file operation error
body: <p>I want to export my database using expdp and I am running the below command for export:</p>
  <pre><code>expdp SYSTEM/SYSTTEM PARFILE=export_dump.par
  </code></pre>
  <p>The export_dump.par file contains the below information:</p>
  <pre><code>DIRECTORY=datapump
  DUMPFILE=I.dmp
  LOGFILE=I.log
  SCHEMAS=RD,RC
  CONTENT=ALL
  </code></pre>
  <p>I have all the permission for the directory datapump.But still, when I try to run the export command I am getting an error as :</p>
  <pre><code>ORA-39002: invalid operation
  ORA-39070: Unable to open the log file.
  ORA-29283: invalid file operation
  ORA-06512: at &quot;SYS.UTL_FILE&quot;, line 536
  ORA-29283: invalid file operation
  </code></pre>