try {
            SimpleDateFormat sdf = new SimpleDateFormat(
                    "yyyy-MM-dd", Locale.US);
            String currentDateandTime = sdf.format(new Date());
            final File path = new File(Environment.getExternalStorageDirectory(), "SMOK_komunal");
            if (!path.exists()) {
                path.mkdir();
            }
            Log.e("path ", path.getAbsolutePath());
            Runtime.getRuntime().exec("logcat  -f " + path + File.separator + "dbo_logcat_" + currentDateandTime + ".txt");
        } catch (IOException e) {
            e.printStackTrace();
        }

Log.e("path ", path.getAbsolutePath()+currentDateandTime );