Introduction of redis components
Redis-server: server-side tool
Redis-cli: client tool
Redis-benchmark:redis performance stress testing tool
Redis-check-dump (rdb format) & redis-check-aof (aof format): detect whether the file format of the persistent storage RDB/AOF is incorrect, and find the error to fix it
Redis-shutdown: used to turn off redis
Redis-sentinel: a tool for switching between master and slave in redis
