Possible Duplicate:
Get output from a process
Executing DOS commands from Java
I am trying to run a cmd command from within a JAVA console program e.g.:
ver
and then return the output of the command into a string in JAVA e.g. output:
string result = "Windows NT 5.1"
You can use the following code for this
import java.io.*;
public class doscmd
{
public static void main(String args[])
{
try
{
Process p=Runtime.getRuntime().exec("cmd /c dir");
p.waitFor();
BufferedReader reader=new BufferedReader(
new InputStreamReader(p.getInputStream())
);
String line;
while((line = reader.readLine()) != null)
{
System.out.println(line);
}
}
catch(IOException e1) {e1.printStackTrace();}
catch(InterruptedException e2) {e2.printStackTrace();}
System.out.println("Done");
}
}
You can use Runtime exec in java to execute dos commands from java code.
Based on Senthil's answer here:
Process p = Runtime.getRuntime().exec("cmd /C ver");
BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()),8*1024);
BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));
// read the output from the command
String s = null;
System.out.println("Here is the standard output of the command:\n");
while ((s = stdInput.readLine()) != null)
System.out.println(s.replace("[","").replace("]",""));
Output = Microsoft Windows Version 6.1.7600
You can do something like:
String line;
Process p = Runtime.getRuntime().exec ("ver");
BufferedReader input =new BufferedReader(new InputStreamReader(p.getInputStream()));
BufferedReader error =new BufferedReader(new InputStreamReader(p.getErrorStream()));
System.out.println("OUTPUT");
while ((line = input.readLine()) != null)
System.out.println(line);
input.close();
System.out.println("ERROR");
while ((line = error.readLine()) != null)
System.out.println(line);
error.close();
On comment of @RanRag, the main issue is Windows versus Unix/Mac.
Process p = Runtime.getRuntime().exec("cmd /C ver");.Have a look at java.lang.Runtime or, better yet, java.lang.Process
This might help you get started.
