title: How to get complete system log from android
body: <p>I want get complete system log. Currently, I'm using below code to get system log</p>
  
  <pre><code>try {
          final Process process = Runtime.getRuntime().exec("logcat -d -v threadtime *:I");
          final BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(
                  process.getInputStream()));
          String line;
          while ((line = bufferedReader.readLine()) != null) {
              lineList.add(line);
          }
      } catch (final IOException e) {
          Log.e(e.toString());
      }
  </code></pre>
  
  <p>I'm able to get system log successfully using above code. It gives only last 30 min log. But, I want complete system log from my application launch. Is it possible to write system log to our private file?</p>