Redis CheatSheet

Redis Cheat Sheet

Redis is an open-source, in-memory data structure store used as a database, cache, and message broker. It supports various data structures such as strings, hashes, lists, sets, and more. This cheat sheet provides a quick reference for common Redis commands and operations.

Command	Description	Example
`SET key value`	Set the value of a key	`SET mykey "Hello"`
`GET key`	Get the value of a key	`GET mykey`
`DEL key`	Delete a key	`DEL mykey`
`INCR key`	Increment the value of a key	`INCR counter`
`DECR key`	Decrement the value of a key	`DECR counter`
`HSET key field value`	Set the value of a hash field	`HSET user:id name "John"`
`HGET key field`	Get the value of a hash field	`HGET user:id name`
`LPUSH key value`	Push a value to the beginning of a list	`LPUSH mylist "World"`
`RPUSH key value`	Push a value to the end of a list	`RPUSH mylist "Hello"`
`LPOP key`	Pop a value from the beginning of a list	`LPOP mylist`
`RPOP key`	Pop a value from the end of a list	`RPOP mylist`
`SADD key member`	Add a member to a set	`SADD myset "value"`
`SMEMBERS key`	Get all members of a set	`SMEMBERS myset`
`ZADD key score member`	Add a member with a score to a sorted set	`ZADD myzset 1 "one"`
`ZRANGE key start stop`	Get a range of members from a sorted set	`ZRANGE myzset 0 -1`
`EXPIRE key seconds`	Set a key’s time to live in seconds	`EXPIRE mykey 60`
`PERSIST key`	Remove the expiration of a key	`PERSIST mykey`
`MSET key1 value1 key2 value2 ...`	Set multiple key-value pairs in one command	`MSET key1 "value1" key2 "value2"`
`GETSET key value`	Set the value of a key and return its old value	`GETSET mykey "newvalue"`
`SCAN cursor [MATCH pattern] [COUNT count]`	Incrementally iterate over a set of keys	`SCAN 0 MATCH prefix:* COUNT 10`
`INFO`	Get information and statistics about the server	`INFO`
`FLUSHDB`	Remove all keys from the current database	`FLUSHDB`
`BGSAVE`	Asynchronously save the dataset to disk	`BGSAVE`
`BGREWRITEAOF`	Asynchronously rewrite the append-only file	`BGREWRITEAOF`
`CONFIG GET parameter`	Get the value of a configuration parameter	`CONFIG GET dir`
`CONFIG SET parameter value`	Set the value of a configuration parameter	`CONFIG SET dir /var/redis`
`MONITOR`	Listen for all requests received by the server	`MONITOR`
——————————————–	—————————————————	——————————————-
`ZSCORE key member`	Get the score associated with a member in a sorted set	`ZSCORE myzset "one"`
`ZRANK key member`	Get the rank of a member in a sorted set	`ZRANK myzset "one"`
`ZREM key member [member ...]`	Remove one or more members from a sorted set	`ZREM myzset "one"`
`HGETALL key`	Get all fields and values from a hash	`HGETALL user:id`
`HMSET key field1 value1 [field2 value2 ...]`	Set multiple hash fields and values	`HMSET user:id name "John" age 30`
`HDEL key field1 [field2 ...]`	Delete one or more fields from a hash	`HDEL user:id age`
`SREM key member [member ...]`	Remove one or more members from a set	`SREM myset "value"`
`ZCOUNT key min max`	Count the members in a sorted set within a score range	`ZCOUNT myzset 0 100`
`ZREVRANGE key start stop [WITHSCORES]`	Get a range of members from a sorted set in reverse order	`ZREVRANGE myzset 0 -1 WITHSCORES`
`LLEN key`	Get the length of a list	`LLEN mylist`
`LINDEX key index`	Get an element from a list by its index	`LINDEX mylist 2`
`LINSERT key BEFORE	AFTER pivot value`	Insert a value before or after a specific value in a list
`ZRANGEBYSCORE key min max [WITHSCORES] [LIMIT offset count]`	Get members from a sorted set within a score range	`ZRANGEBYSCORE myzset 0 10 WITHSCORES LIMIT 0 5`
`CONFIG REWRITE`	Rewrite the configuration file with the in-memory configuration	`CONFIG REWRITE`
`CLIENT LIST`	Get the list of client connections to the server	`CLIENT LIST`
`SCRIPT LOAD script`	Load a Lua script into the script cache	`SCRIPT LOAD "return redis.call('PING')"`

This cheat sheet covers some of the fundamental Redis commands. For more detailed information, refer to the official Redis documentation.