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exec() in win2000

 
Greenhorn
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I am running windows 2000, and i have having some problems running this code. It work when for exec("ping"), or exec("ftp") but trying to run exec("dir") or exec("set") it breaks. Can anyone help??? I am guessing that i need to give java more rights to run system commands or something??? Thank you for any help...
import java.io.*;
public class RunOSCommand {
public RunOSCommand() {
}
public static void main(String[] args) {
System.out.println("in the main");
try
{
Runtime r = Runtime.getRuntime();
String cmd = ("set");
Process p = r.exec(cmd);
BufferedReader reader = new BufferedReader(new InputStreamReader(new
DataInputStream( new BufferedInputStream(p.getInputStream()))));
String lineRead =null;
while( (lineRead = reader.readLine() ) != null)
{
System.out.println(lineRead);
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
// --------------------------------------------------------
H:\java>java RunOSCommand
in the main
java.io.IOException: CreateProcess: set error=2
at java.lang.Win32Process.create(Native Method)
at java.lang.Win32Process.<init>(Win32Process.java:64)
at java.lang.Runtime.execInternal(Native Method)
at java.lang.Runtime.exec(Runtime.java:300)
at java.lang.Runtime.exec(Runtime.java:247)
at RunOSCommand.main(RunOSCommand.java, Compiled Code)
 
Greenhorn
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Hi,
Use
Runtimert=Runtime.getRuntime ();
Process p = rt.exec ("cmd /c dir);
This is used when you invoke a dos command.
Bye
Xavier
 
Ranch Hand
Posts: 18944
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The problem you are having is that dir and set are commands within DOS. You will have to exec cmd.exe or command.com and then send your DOS commands to the resulting process.
 
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