Redis Commands Cheatsheet

String

`SET key value EX 3600`	Set with TTL (seconds)
`GET key`	Get value
`INCR counter`	Atomic increment
`MSET k1 v1 k2 v2`	Set multiple keys
`MGET k1 k2`	Get multiple keys
`SETNX key value`	Set if not exists

Hash

`HSET user name Alice age 30`	Set hash fields
`HGET user name`	Get hash field
`HGETALL user`	Get all fields
`HDEL user age`	Delete field

List

`LPUSH queue item`	Push to head
`RPUSH queue item`	Push to tail
`LPOP queue`	Pop from head
`LRANGE queue 0 -1`	Get all elements
`BLPOP queue 10`	Blocking pop (10s timeout)

Set & Sorted Set

`SADD myset a b c`	Add to set
`SMEMBERS myset`	Get all members
`ZADD rank 100 Alice 200 Bob`	Add to sorted set
`ZRANGE rank 0 -1 WITHSCORES`	Get sorted set
`ZRANGEBYSCORE rank 100 200`	Range by score

Key Management

`TTL key`	Get remaining TTL
`EXPIRE key 3600`	Set TTL
`DEL key`	Delete key
`KEYS pattern*`	Find keys (avoid in prod)
`SCAN 0 MATCH prefix* COUNT 100`	Iterate keys safely

Pub/Sub & Transactions

`SUBSCRIBE channel`	Subscribe to channel
`PUBLISH channel msg`	Publish message
`MULTI / EXEC / DISCARD`	Transaction
`WATCH key`	Optimistic lock