android执行命令行

private int excuteSuCMD(String cmd) {
		try {
			Process process = Runtime.getRuntime().exec("su");
			DataOutputStream dos = new DataOutputStream(
					(OutputStream) process.getOutputStream());

			// 部分手机Root之后Library path 丢失，导入path可解决该问题
			dos.writeBytes((String) "export LD_LIBRARY_PATH=/vendor/lib:/system/lib\n");
			cmd = String.valueOf(cmd);
			dos.writeBytes((String) (cmd + "\n"));
			dos.flush();
			dos.writeBytes("exit\n");
			dos.flush();
			process.waitFor();
			int result = process.exitValue();
			return (Integer) result;
		} catch (Exception localException) {
			localException.printStackTrace();
			return -1;
		}
	}

android执行命令行函数 

例子：

excuteSuCMD("pm install -r /mnt/usb_storage/xxx.apk")，安装U盘下的xxx.apk