running linux cmd in servlet/jsp

Hi all,

I would like to grep my linux MAC address, the command to run under linux should be like this 
ifconfig eth1 | grep HWaddr | awk '{print $5; }' 

Therefore i wrote it like below...

But it failed.....

Anyone can help?? Thanks.

Regards
KL

*********************************
  Process proc1=null;
  Runtime rt1 = Runtime.getRuntime();
  
  proc1 = rt1.exec("/sbin/ifconfig eth1 | grep HWaddr | awk '{print $5; }' ");
  
  BufferedReader result = new BufferedReader(new InputStreamReader(proc1.getInputStream()));
  BufferedReader error = new BufferedReader(new InputStreamReader(proc1.getErrorStream()));

  String str_result = null;
  String str_error = null;

  while ( ( str_result = result.readLine()) != null)
  {
   out.println(str_result);
  }

  while ( ( str_error = error.readLine()) != null)
  {
   out.println(str_error);
  }
*********************************




Best regards,
KL OOI
Senior Software Engineer
iBridge Capital Technology Solutions Limited
 
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