Let's try to redo kafka in bash
./kafka-topics.sh --list
./kafka-topics.sh --topic demo --partitions 10 --create
./kafka-topics.sh --list
seq 10 | ./kafka-console-producer.sh --topic demo
./kafka-topics.sh --list
seq 50 | ./kafka-console-producer.sh --topic demo
./kafka-topics.sh --list --describe
./kafka-console-consumer.sh --topic demo
./kafka-console-consumer.sh --topic demo --from-beginning
./kafka-topics.sh --topic demo --delete
./kafka-topics.sh --list
