Android中调用shell命令；

public static int execCommand(String command) throws IOException {
return execCommand(new String[] { "sh","-c", command });

}
/**
* Execute shell command
* @param command Shell command array
* @return Result
* @throws IOException Throws when occurs #IOException
*/
public static int execCommand(String[] command) throws IOException {
Log.d("Darrick", "command = "+command);
int result = RESULT_FAIL;
Runtime runtime = Runtime.getRuntime();

Process proc = runtime.exec(command);

}
其中String command = "echo > 0 /sys/bus/platform/drivers/battery/Charging_switch";本来打算是应用检测到电量为100%时自动执行该命令，不让机器充电；但是实现不了，求高手解答；谢谢；

String tTempString = new String("su -c reboot");
//StandByMode = false;
int r = 0;
try {
Process process = Runtime.getRuntime().exec(tTempString);

            } catch (Exception e) {
                e.printStackTrace();
            }
                    //我写的一个重启的命令有效的