Redis Cheat Sheet
Strings
APPEND key value Append
BITCOUNT key [ start stop ] Count # of set bits
BITOP AND dest [ src ]+ Bitwise AND
BITOP OR dest [ src ]+ Bitwise OR
BITOP XOR dest [ src ]+ Bitwise XOR
BITOP NOT dest src Bitwise NOT
BITPOS key bit [ start stop ] Find first set bit
DECR key Decrement integer
DECRBY key by Subtract from integer
GET key Get by key
GETBIT key offset Get bit by index
GETRANGE key start end Get substring
GETSET key value Set, returning old value
INCR key Increment integer
INCRBY key by Add to integer
INCRBYFLOAT key by Add to float
MGET [ key ]+ Get multiple
MSET [ key value ]+ Set multiple
MSETNX [ key value ]+ Set multiple if doesn’t exist
PSETEX key ms value Set with expiry (ms)
SET key value Set
SETBIT key offset value Set bit by index
SETEX key secs value Set with expiry (s)
SETNX key value Set if doesn’t exist
SETRANGE key offset value Set substring
STRLEN key Get length

Strings can be used as numbers, arrays, bit sets and binary data
Databases
DEL [ key ]+ Delete item(s)
DUMP key Serialise item
EXISTS [ key ]+ Check for key
EXPIRE key s Set timeout on item
EXPIREAT key ts Set timeout by timestamp
KEYS pattern Get keys matching pattern
MIGRATE Transfer item between instances
MOVE key db Transfer item between databases
OBJECT Inspect item
PERSIST key Remove timeout
PEXPIRE key ms Set timeout (ms)
PEXPIREAT key ts Set timeout (timestamp)
PTTL key Get item TTL (ms)
RANDOMKEY Get random key
RENAME key new Change item’s key
RENAMENX key new Change key if new key doesn’t exist
RESTORE key Deserialise
SCAN key cursor [ MATCH pattern ] [ COUNT count ] Iterate keys
SORT Get or store sorted copy
TTL key Get item TTL (s)
TYPE key Get type of item

Times are specified in seconds (s) or milliseconds (ms)
Timestamps (s) are specified as seconds since January 1, 1970
Hashes
HDEL key [ field ]+ Delete field(s)
HEXISTS key field Check for field
HGET key field Get item
HGETALL key Return all fields / values
HINCRBY key field by Add to integer value
HINCRBYFLOAT key field by Add to float value
HKEYS key Return all fields
HLEN key Get number of fields
HMGET key [ field ]+ Get multiple items
HMSET key [ field value ]+ Set multiple items
HSCAN key cursor [ MATCH pattern ] [ COUNT count ] Iterate fields
HSET key field value Set field
HSETNX key field value Set field if doesn’t exist
HSTRLEN key field Get string length of field
HVALS key Return all values
Sets
SADD key [ member ]+ Add item
SCARD key Get size of set
SDIFF [ key ]+ Get difference
SDIFFSTORE dest [ key ]+ Store difference
SINTER [ key ]+ Intersection
SINTERSTORE dest [ key ]+ Store intersection
SISMEMBER key member Check for item
SMEMBERS key Get all
SMOVE src dest member Move item to another set
SPOP key [ count ]? Pop random item
SRANDMEMBER key [ count ] Get random item
SREM key [ member ]+ Remove matching
SSCAN key cursor [ MATCH pattern ] [ COUNT count ] Iterate items
SUNION[ key ]+ Union
SUNIONSTORE dest [ key ]+ Store union

Sorted Sets
ZADD key [ options ] [ score item ]+ Add item
ZCARD key Get number of items
ZCOUNT key min max Number of items with score range
ZINCRBY key incr member Add to score
ZINTERSTORE Store intersection
ZLEXCOUNT key min max Lexicographical range count
ZRANGE key start stop
[ WITHSCORES ]		 Get items within rank range
ZRANGEBYLEX key min max [ LIMIT offset count ] Get items within lexicographical range
ZRANGEBYSCORE key min max [ WITHSCORES ] [ LIMIT offset count ] Get items within score range
ZRANK key member Get item rank
ZREM key [ member ]+ Remote item(s)
ZREMRANGEBYLEX key min max Remove items within lexicographical range
ZREMRANGEBYRANK key start stop Remove items within rank range
ZREMRANGEBYSCORE key min max Remove items within score range
ZREVRANGE ZRANGE in reverse order
ZREVRANGEBYLEX ZRANGEBYLEX in reverse order
ZREVRANGEBYSCORE ZRANGEBYSCORE in reverse order
ZREVRANK ZRANK in reverse order
ZSCAN key cursor [ MATCH pattern ] [ COUNT count ] Iterate items
ZSCORE key member Get item score
ZUNIONSTORE dest numkeys [ key ]+ [ WEIGHTS [ weight ]+ ] [ AGGREGATE SUM MIN

Lexicographical commands require items to have the same score
Lists
BLPOP [ key ]+ timeout Blocking left pop
BRPOP [ key ]+ timeout Blocking right pop
BRPOPLPUSH src dest timeout Blocking rotate
LINDEX key index Access by index
LINSERT key BEFORE AFTER pivot value
LLEN key Get length
LPOP key Pop from start
LPUSH key [ value ]+ Push onto start
LPUSHX key value Push if list exists
LRANGE key start stop Access range
LREM key count value Remove occurrences
LSET key index value Set item by index
LTRIM list start stop Remove start/end items
RPOP key Pop from end
RPOPLPUSH src dest Rotate
RPUSH key [ value ]+ Push onto end
RPUSHX key value Push onto end if list exists

Client/Server
AUTH password Request authentication
ECHO message Return message
PING Test connection
QUIT Close connection
SELECT index Set current database by index
Scripts
EVAL Run
EVALSHA Run cached
SCRIPT EXISTS Check by hash
SCRIPT FLUSH Clear cache
SCRIPT KILL Kill running script
SCRIPT LOAD Add to cache