README: Add some CLI commands

README.md

@@ -26,6 +26,59 @@ WIN10@DESKTOP:~$ kafka-server-start config/server.properties
 
 ```
 
+## CLI 명령어
+
+1. 토픽 만들기 (파티션=3, 복제 계수=2)
+```console
+WIN10@DESKTOP:~$ kafka-topics --zookeeper localhost:2181 --topic first-topic --create --partitions 3 --replication-factor 2
+```
+
+2. 토픽 목록 보기
+```console
+WIN10@DESKTOP:~$ kafka-topics --zookeeper localhost:2181 --list
+
+first-topic
+second-topic
+```
+
+3. 토픽 설정 보기
+```console
+WIN10@DESKTOP:~$ kafka-topics --zookeeper localhost:2181 --topic first-topic --describe
+
+Topic: first-topic      PartitionCount: 3       ReplicationFactor: 1    Configs:
+        Topic: first-topic      Partition: 0    Leader: 0       Replicas: 0     Isr: 0
+        Topic: first-topic      Partition: 1    Leader: 0       Replicas: 0     Isr: 0
+        Topic: first-topic      Partition: 2    Leader: 0       Replicas: 0     Isr: 0
+```
+
+4. 토픽 컨슈머 (프로듀서 작동할 때)
+```console
+WIN10@DESKTOP:~$ kafka-console-consumer --bootstrap-server localhost:9092 --topic first-topic
+```
+
+5. 토픽 그룹 이름 설정 및 컨슈머
+```console
+WIN10@DESKTOP:~$ kafka-console-consumer --bootstrap-server localhost:9092 --topic first-topic --group group-one
+```
+
+6. 토픽 컨슈머 그룹 목록
+```console
+WIN10@DESKTOP:~$ kafka-consumer-groups --bootstrap-server localhost:9092 --list
+
+group-one
+```
+
+7. 토픽 오프셋 초기화
+```console
+WIN10@DESKTOP:~$ kafka-consumer-groups --bootstrap-server localhost:9092 --topic first-topic --group group-one --reset-offsets --to-earliest --execute
+
+GROUP                          TOPIC                          PARTITION  NEW-OFFSET
+group-one                      first-topic                    0          0
+group-one                      first-topic                    1          0
+group-one                      first-topic                    2          0
+
+```
+
 ## 목차
 
 <table>