1.For server
  compile: g++ -o server server.cpp -pthread_t
  execute: ./server 127.0.0.1 5002
  Note: ip and port should passed as cmd line arguements

2.For Client
  compile: gcc -o client client.c
  execute: (1) for interactive
               : ./client interactive
           (2) for batch
               : ./client batch batch.txt
          Note : file should be passed