Java - script para reiniciar adaptador ethernet

#!/bin/bash

#

# Script to enable my internet

# Usage: internetgo

#

ifconfig eth0 down

ifconfig eth0 up

exit 0

import os

import threading

import time

import logging

def printit():

resultado = os.system("ifconfig eth0 down")

print "Ejecutando comando"

if __name__ == '__main__':

t = threading.Timer(3.0, hello)

t..setName('t1')

logging.debug('iniciando timer...')

t.start()

time.sleep(2)

public class P15 extends Thread {

    private static Thread t;

    public void run() {

        if (Thread.currentThread() == t) {

             try {

    	Process process = Runtime.getRuntime().exec("ifconfig eth0 down");

    } catch (IOException e) {

    	e.printStackTrace();

    }

            System.out.println(" T1 antes del bloqueo.");

            synchronized (t) {

                System.out.println(" T1 bloqueando antes de dormir. ");

                doSleep(2000);

            }

            System.out.println(" T1 bloqueo liberado.");

        } else {

            System.out.println(" T2 antes del bloqueo. ");

            synchronized (t) {

                 try {

    	Process process = Runtime.getRuntime().exec("ifconfig eth0 up");

    } catch (IOException e) {

    	e.printStackTrace();

    }

                System.out.println(" T2 bloqueando antes de dormir. ");

                doSleep(1000);

            }

            System.out.println(" T2 bloqueo liberado. ");

        }

    }

    private void doSleep(long delay) {

        try {

            Thread.sleep(delay);

        } catch (InterruptedException ie) {

            ;

        }

    }

    public static void main(String args[]) {

        t = new P15();

        P15 t2 = new P15();

        t.setName("t1");

        t2.setName("t2");

        //t2.setPriority(MAX_PRIORITY);

        t.start();

        t2.start();

    }

}