$R test

Solution

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;

public class Solution {
  public static void main(String[] args) throws IOException {
    BufferedReader br1 = new BufferedReader(new FileReader(new File("/home/chathura/Downloads/indy_data/IPBroadcaster_Input_2018-05-16_0.log")));
    String line;
    while ((line = br1.readLine()) != null) {
      if (line.contains("$R")) {
        System.out.println(line);
      }
    }

  }
}