Re: Running dos native commands from java application...

[Aboul - Enein, Ahmed Ahmed (Ahmed)]

Hello,
  cmd did not work for me, I'm using win98. I could not find any file with
this name on my hard disk.
  It could be dependent on the windows version, do not worry about this!

  However the following worked...
                Runtime rt = Runtime.getRuntime();
                rt.exec("c:\\command.com /c dir > c:\\abc.txt");
  Do u know how to run more than one command with one call to command.com?
Because if I called exec() for each, the JVM would create a new process for
each command.
  The batch file could be an alternative if we cannot supply more than one
command to command.com.

Regards,
Ahmed Aboul-Enein

Software Engineer
Lucent Software Center in Egypt,
Wireless Network Group,
Lucent Technologies Inc.,
1 Road 204, Salah Salem Square,
Degla, Maadi 11435, Cairo, Egypt
e-mail: [EMAIL PROTECTED]

Say what you do and do what you say!


-----Original Message-----
From: Zeng, Feng_Hua (CAP,CEF) [mailto:[EMAIL PROTECTED]]
Sent: Monday, April 09, 2001 10:56 AM
To: [EMAIL PROTECTED]
Subject: Re: Running dos native commands from java application...


Try the following:

Runtime rt = Runtime.getRuntime();
 rt.exec("cmd /c dir > abc.xyz");

and then check if a file named abc.xyz has been generated.

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-----Original Message-----
From: Padmakar Neelapareddy [mailto:[EMAIL PROTECTED]]
Sent: Monday, April 09, 2001 3:29 PM
To: [EMAIL PROTECTED]
Subject: Running dos native commands from java application...

Dear All,
I need to execute DOS native commnads such as "dir","copy","copy x.txt >
prn".......etc
from inside a java application.
I tried them using following code

Runtime rt = Runtime.getRuntime();
 rt.exec("dir");
 rt.exec("copy x.txt > prn");

But I got following exception

java.io.IOException: CreateProcess: dir error=2
        at java.lang.Win32Process.create(Native Method)
        at java.lang.Win32Process.<init>(Unknown Source)
        at java.lang.Runtime.execInternal(Native Method)

Can any one help me regarding this please ? I want it
urgently...................!

Waiting for your valuable replies........

Rgds
padmakar neelapareddy


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