📖 Guide

Redis Commands Cheat Sheet — Complete Reference

Every Redis command you need, from strings and hashes to streams and clusters. Searchable and organized.

200 commands across 12 categories

Connection & Server Strings Hashes Lists Sets Sorted Sets Keys & Expiry Pub/Sub Transactions Scripting Streams Cluster

Connection & Server

Command	Description
`redis-cli`	Connect to local Redis on default port 6379
`redis-cli -h <host> -p <port>`	Connect to a remote Redis instance
`redis-cli -a <password>`	Connect with authentication
`redis-cli -n <db>`	Connect to a specific database number
`redis-cli --tls`	Connect over TLS
`AUTH <password>`	Authenticate to the server
`AUTH <username> <password>`	Authenticate with username (Redis 6+ ACL)
`PING`	Test if server is alive (returns PONG)
`SELECT <db>`	Switch to a different database (0-15)
`DBSIZE`	Return the number of keys in the current database
`INFO`	Get server information and statistics
`INFO memory`	Get memory usage statistics
`CONFIG GET <pattern>` e.g. CONFIG GET maxmemory	Get configuration parameters
`CONFIG SET <key> <value>`	Set a configuration parameter at runtime
`CONFIG REWRITE`	Persist runtime config changes to redis.conf
`FLUSHDB`	Delete all keys in the current database
`FLUSHALL`	Delete all keys in all databases
`SAVE`	Synchronous save (blocks server)
`BGSAVE`	Background save (non-blocking)
`LASTSAVE`	Get the timestamp of the last successful save
`MONITOR`	Stream all commands received by the server in real time
`SLOWLOG GET 10`	Get the 10 most recent slow queries
`CLIENT LIST`	List all connected clients
`CLIENT KILL ID <id>`	Kill a specific client connection
`SHUTDOWN`	Shut down the server

Strings

Command	Description
`SET key value`	Set a string value
`SET key value EX 60`	Set with expiry in seconds
`SET key value PX 5000`	Set with expiry in milliseconds
`SET key value NX`	Set only if key does not exist
`SET key value XX`	Set only if key already exists
`SETNX key value`	Set if not exists (returns 1 on success, 0 if exists)
`SETEX key 60 value`	Set value with expiry in seconds (atomic)
`MSET key1 val1 key2 val2`	Set multiple keys at once
`MSETNX key1 val1 key2 val2`	Set multiple keys only if none exist
`GET key`	Get the value of a key
`MGET key1 key2 key3`	Get values of multiple keys
`GETSET key value`	Set new value and return the old one
`GETDEL key`	Get value and delete the key
`GETRANGE key 0 4`	Get a substring of the value
`SETRANGE key 6 world`	Overwrite part of a string at offset
`STRLEN key`	Get the length of the value
`APPEND key " extra"`	Append to existing value
`INCR key`	Increment integer value by 1
`INCRBY key 5`	Increment integer value by N
`INCRBYFLOAT key 1.5`	Increment float value
`DECR key`	Decrement integer value by 1
`DECRBY key 3`	Decrement integer value by N

Hashes

Command	Description
`HSET key field value`	Set a field in a hash
`HSET key f1 v1 f2 v2`	Set multiple fields at once (Redis 4+)
`HSETNX key field value`	Set field only if it doesn't exist
`HGET key field`	Get a field value
`HMGET key f1 f2 f3`	Get multiple field values
`HGETALL key`	Get all fields and values
`HDEL key field`	Delete one or more fields
`HEXISTS key field`	Check if a field exists (returns 0 or 1)
`HLEN key`	Get number of fields in the hash
`HKEYS key`	Get all field names
`HVALS key`	Get all values
`HINCRBY key field 5`	Increment integer field value
`HINCRBYFLOAT key field 1.5`	Increment float field value
`HSCAN key 0 MATCH user:*`	Incrementally iterate hash fields

Lists

Command	Description
`LPUSH key value`	Push element to the head (left) of a list
`RPUSH key value`	Push element to the tail (right) of a list
`LPUSH key v1 v2 v3`	Push multiple elements to the head
`LPUSHX key value`	Push to head only if list exists
`RPUSHX key value`	Push to tail only if list exists
`LPOP key`	Remove and return element from head
`RPOP key`	Remove and return element from tail
`LPOP key 3`	Pop multiple elements from head (Redis 6.2+)
`BLPOP key 30`	Blocking pop from head (wait up to 30s)
`BRPOP key 30`	Blocking pop from tail (wait up to 30s)
`LLEN key`	Get the length of a list
`LRANGE key 0 -1`	Get all elements (start to end)
`LRANGE key 0 9`	Get first 10 elements
`LINDEX key 0`	Get element at a specific index
`LSET key 0 newvalue`	Set element at a specific index
`LINSERT key BEFORE pivot value`	Insert before a pivot element
`LREM key 2 value`	Remove first 2 occurrences of value
`LTRIM key 0 99`	Trim list to specified range (keep 100 items)
`RPOPLPUSH source dest`	Pop from tail of source, push to head of dest
`LMOVE src dst LEFT RIGHT`	Move element between lists (Redis 6.2+)

Sets

Command	Description
`SADD key member`	Add one or more members to a set
`SADD key m1 m2 m3`	Add multiple members
`SREM key member`	Remove one or more members
`SISMEMBER key member`	Check if member exists (returns 0 or 1)
`SMISMEMBER key m1 m2 m3`	Check if multiple members exist (Redis 6.2+)
`SMEMBERS key`	Get all members
`SCARD key`	Get the number of members
`SPOP key`	Remove and return a random member
`SPOP key 3`	Remove and return N random members
`SRANDMEMBER key`	Get a random member without removing
`SUNION key1 key2`	Return union of sets
`SUNIONSTORE dest key1 key2`	Store union into a new set
`SINTER key1 key2`	Return intersection of sets
`SINTERSTORE dest key1 key2`	Store intersection into a new set
`SDIFF key1 key2`	Return difference (members in key1 not in key2)
`SDIFFSTORE dest key1 key2`	Store difference into a new set
`SMOVE source dest member`	Move a member from one set to another
`SSCAN key 0 MATCH pattern*`	Incrementally iterate set members

Sorted Sets

Command	Description
`ZADD key score member`	Add member with score to sorted set
`ZADD key 1 a 2 b 3 c`	Add multiple members with scores
`ZADD key NX score member`	Add only if member doesn't exist
`ZADD key GT score member`	Update score only if new score is greater
`ZINCRBY key 5 member`	Increment score of a member
`ZSCORE key member`	Get the score of a member
`ZMSCORE key m1 m2`	Get scores of multiple members (Redis 6.2+)
`ZRANK key member`	Get rank (0-based, low to high)
`ZREVRANK key member`	Get rank (0-based, high to low)
`ZRANGE key 0 -1`	Get all members sorted by score (ascending)
`ZRANGE key 0 -1 WITHSCORES`	Get all members with their scores
`ZREVRANGE key 0 9`	Get top 10 by score (descending)
`ZRANGEBYSCORE key 10 100`	Get members with score between 10 and 100
`ZRANGEBYSCORE key -inf +inf LIMIT 0 10`	Get first 10 by score range
`ZREM key member`	Remove one or more members
`ZREMRANGEBYRANK key 0 4`	Remove members by rank range
`ZREMRANGEBYSCORE key 0 100`	Remove members by score range
`ZCARD key`	Get the number of members
`ZCOUNT key 10 100`	Count members with score in range
`ZUNIONSTORE dest 2 key1 key2`	Store union of sorted sets
`ZINTERSTORE dest 2 key1 key2`	Store intersection of sorted sets
`ZPOPMIN key`	Remove and return member with lowest score
`ZPOPMAX key`	Remove and return member with highest score
`BZPOPMIN key 30`	Blocking pop of lowest-scored member
`ZSCAN key 0 MATCH pattern*`	Incrementally iterate sorted set

Keys & Expiry

Command	Description
`KEYS *`	Find all keys (avoid in production — blocks server)
`KEYS user:*`	Find keys matching a glob pattern
`SCAN 0 MATCH user:* COUNT 100`	Incrementally iterate keys (production-safe)
`EXISTS key`	Check if a key exists (returns 0 or 1)
`TYPE key`	Get the data type of a key
`OBJECT ENCODING key`	Get the internal encoding of a key
`DEL key`	Delete one or more keys (blocking)
`UNLINK key`	Delete keys asynchronously (non-blocking)
`RENAME key newkey`	Rename a key
`RENAMENX key newkey`	Rename only if new key doesn't exist
`COPY source dest`	Copy value to another key (Redis 6.2+)
`DUMP key`	Serialize a key's value
`RESTORE key 0 <serialized>`	Restore a serialized value
`EXPIRE key 60`	Set TTL in seconds
`PEXPIRE key 5000`	Set TTL in milliseconds
`EXPIREAT key 1700000000`	Set expiry as Unix timestamp
`PERSIST key`	Remove expiry (make key persistent)
`TTL key`	Get remaining TTL in seconds (-1 = no expiry, -2 = missing)
`PTTL key`	Get remaining TTL in milliseconds
`RANDOMKEY`	Return a random key from the database
`SORT key ALPHA`	Sort elements alphabetically
`SORT key LIMIT 0 10 DESC`	Sort numerically, descending, with limit

Pub/Sub

Command	Description
`SUBSCRIBE channel`	Subscribe to a channel
`SUBSCRIBE ch1 ch2 ch3`	Subscribe to multiple channels
`PSUBSCRIBE pattern*`	Subscribe to channels matching a pattern
`PUBLISH channel message`	Publish a message to a channel
`UNSUBSCRIBE channel`	Unsubscribe from a channel
`PUNSUBSCRIBE pattern*`	Unsubscribe from a pattern
`PUBSUB CHANNELS`	List active channels with subscribers
`PUBSUB NUMSUB channel`	Get subscriber count for a channel
`PUBSUB NUMPAT`	Get total number of pattern subscriptions

Transactions

Command	Description
`MULTI`	Start a transaction block
`EXEC`	Execute all commands in the transaction
`DISCARD`	Discard all commands in the transaction
`WATCH key`	Watch keys for changes (optimistic locking)
`UNWATCH`	Unwatch all watched keys
`MULTI\nSET k1 v1\nSET k2 v2\nEXEC`	Complete transaction example

Scripting

Command	Description
`EVAL "return redis.call('GET', KEYS[1])" 1 mykey`	Execute a Lua script
`EVAL "redis.call('SET', KEYS[1], ARGV[1])" 1 key value`	Lua script with keys and arguments
`EVALSHA <sha1> 1 mykey`	Execute a cached script by SHA1 hash
`SCRIPT LOAD "return 'hello'"`	Load a script into cache and return its SHA1
`SCRIPT EXISTS <sha1>`	Check if a script exists in the cache
`SCRIPT FLUSH`	Remove all scripts from the cache
`FUNCTION LOAD "#!lua name=mylib\nredis.register_function('myfunc', function(keys, args) return 'ok' end)"`	Load a library function (Redis 7+)
`FCALL myfunc 0`	Call a registered function (Redis 7+)

Streams

Command	Description
`XADD stream * field value`	Add entry with auto-generated ID
`XADD stream * name John age 30`	Add entry with multiple fields
`XADD stream MAXLEN ~ 1000 * field value`	Add entry with stream cap (~approximate)
`XLEN stream`	Get the number of entries in a stream
`XRANGE stream - +`	Get all entries (oldest to newest)
`XRANGE stream - + COUNT 10`	Get first 10 entries
`XREVRANGE stream + -`	Get all entries (newest to oldest)
`XREAD COUNT 5 STREAMS stream 0`	Read entries from the beginning
`XREAD BLOCK 5000 STREAMS stream $`	Block-read for new entries (5s timeout)
`XGROUP CREATE stream group 0`	Create a consumer group from the beginning
`XGROUP CREATE stream group $ MKSTREAM`	Create group for new entries only, create stream if missing
`XREADGROUP GROUP group consumer COUNT 10 STREAMS stream >`	Read pending entries for a consumer
`XACK stream group <id>`	Acknowledge a message
`XPENDING stream group`	Show pending entries summary
`XCLAIM stream group consumer 60000 <id>`	Claim idle pending messages
`XDEL stream <id>`	Delete a specific entry
`XTRIM stream MAXLEN ~ 1000`	Trim stream to approximate max length
`XINFO STREAM stream`	Get stream information
`XINFO GROUPS stream`	List consumer groups

Cluster

Command	Description
`redis-cli --cluster create host1:6379 host2:6379 host3:6379 --cluster-replicas 1`	Create a new cluster with replicas
`CLUSTER INFO`	Get cluster state and information
`CLUSTER NODES`	List all nodes in the cluster
`CLUSTER SLOTS`	Get mapping of slots to nodes
`CLUSTER MEET <ip> <port>`	Add a node to the cluster
`CLUSTER FORGET <node-id>`	Remove a node from the cluster
`CLUSTER REPLICATE <node-id>`	Make current node a replica of another
`CLUSTER FAILOVER`	Manual failover (replica promotes itself)
`CLUSTER RESET`	Reset cluster configuration on a node
`redis-cli --cluster reshard host:6379`	Reshard slots between nodes
`redis-cli --cluster check host:6379`	Check cluster health
`redis-cli -c`	Connect in cluster mode (auto-redirect)