How to run a linux command in an Android app

RunLinuxCommandActivity.java

        try {
            String commandLine = "date";
            Process process = Runtime.getRuntime().exec(commandLine);
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String value = bufferedReader.readLine();

            TextView dateTextView = (TextView) findViewById(R.id.text_view_date);
            dateTextView.setText(value);
        } catch (IOException e) {
            e.printStackTrace();
        }