public static String getKernelVersion() { 
  String kernelVersion = ""; 
  InputStream inputStream = null; 
  try { 
    inputStream = new FileInputStream("/proc/version"); 
  } catch (FileNotFoundException e) { 
    e.printStackTrace(); 
    return kernelVersion; 
  } 
  BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream), 8 * 1024); 
  String info = ""; 
  String line = ""; 
  try { 
    while ((line = bufferedReader.readLine()) != null) { 
      info += line; 
    } 
  } catch (IOException e) { 
    e.printStackTrace(); 
  } finally { 
    try { 
      bufferedReader.close(); 
      inputStream.close(); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } 
  } 
 
  try { 
    if (info != "") { 
      final String keyword = "version "; 
      int index = info.indexOf(keyword); 
      line = info.substring(index + keyword.length()); 
      index = line.indexOf(" "); 
      kernelVersion = line.substring(0, index); 
    } 
  } catch (IndexOutOfBoundsException e) { 
    e.printStackTrace(); 
  } 
 
  return kernelVersion; 
}