ScriptsFromJava

package deploy;

public class ScriptExec {
  public static void main(String args[]) {
    if (args.length < 1) {
      System.out.println("USAGE: java GoodWindowsExec <cmd>");
      System.exit(1);
    }

    try {
      String osName = System.getProperty("os.name");
      String[] cmd = new String[3];

      if(osName.equals("Windows XP")) {
        cmd[0] = "cmd.exe" ;
        cmd[1] = "/C" ;
        cmd[2] = args[0];
      } else if(osName.equals("Windows NT")) {
        cmd[0] = "cmd.exe" ;
        cmd[1] = "/C" ;
        cmd[2] = args[0];
      } else if(osName.equals("Windows 95")) {
        cmd[0] = "command.com" ;
        cmd[1] = "/C" ;
        cmd[2] = args[0];
      }

      Runtime rt = Runtime.getRuntime();
      System.out.println("Execing " + cmd[0] + " " + cmd[1]
                 + " " + cmd[2]);
      Process proc = rt.exec(cmd);
      // any error message?
      StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(), "ERROR");

      // any output?
      StreamGobbler outputGobbler = new StreamGobbler(proc.getInputStream(), "OUTPUT");

      // kick them off
      errorGobbler.start();
      outputGobbler.start();

      // any error???
      int exitVal = proc.waitFor();
      System.out.println("ExitValue: " + exitVal);
    } catch (Throwable t) {
      t.printStackTrace();
    }
  }
}


package deploy;

import java.util.*;
import java.io.*;

class StreamGobbler
    extends Thread {
  private InputStream is;
  private String      type;

  StreamGobbler(InputStream is,
                String      type) {
    this.is   = is;
    this.type = type;
  }

  public void run() {
    try {
      InputStreamReader isr = new InputStreamReader(is);
      BufferedReader br = new BufferedReader(isr);
      String line=null;
      while ((line = br.readLine()) != null)
        System.out.println(type + ">" + line);
    } catch (IOException ioe) {
      ioe.printStackTrace();
    }
  }
}