String line = null;
            Process process = Runtime.getRuntime().exec("su");
            DataOutputStream stdIn = new DataOutputStream(process.getOutputStream());
            DataInputStream stdErr = new DataInputStream(process.getErrorStream());
            DataInputStream stdOut = new DataInputStream(process.getInputStream());

            stdIn.writeBytes("grep TeleGuide < /cache/logger/AOL_main.ap.bin.old >> /sdcard/TeleGuide.log\n");
            stdIn.flush();

            while((line = stdOut.readLine()) != null)
                Log.d(TAG, ">> " + line);
            while((line = stdErr.readLine()) != null)
                Log.d(TAG, ">>> " + line);

            stdIn.writeBytes("exit\n");
            stdIn.flush();

            while((line = stdOut.readLine()) != null)
                Log.d(TAG, ">> " + line);
            while((line = stdErr.readLine()) != null)
                Log.d(TAG, ">>> " + line);

            process.destroy();
            stdIn.close();
            stdOut.close();
            stdErr.close();
            Log.d(TAG, "Successfully preserved last sessions logs!");