https://study.zhyun.kim/posts/Redis-Redis-Cli-%EC%8B%A4%ED%96%89-%EC%8B%9C-%ED%95%9C%EA%B8%80-%EB%B6%84%ED%95%B4%EB%8F%BC%EC%84%9C-%EB%82%98%ED%83%80%EB%82%A0-%EB%95%8C/