One can send multiple commands to the server without waiting for a reply, and finally read the answer in one step.
Saving round-trip time RTT (Round Trip Time - round-trip time).
1. Installation nc: yum install nc -y
2. redis connected via nc: nc localhost 6379
3. Send via echo to the nc command: echo -e "set k1 99 \ nincr k1 \ n get k1" | nc localhost 6379
(By newline \ n spaced between command)
