cmd.md

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Redis Commands

[TOC]

Key

Command	Description	Options	Complexity	Example
DEL	Remove the specified one or more keys (non-existing keys are ignored); returns number of removed keys			DEL name1 name2 removes keys name1 and name2
DUMP	Serialize the value stored at key and return it			DUMP name
EXISTS	Check if a key exists (returns 1 if it exists)			EXISTS name
EXPIRE	Set a key's time to live (precision: since 2.6, millisecond precision available)			EXPIRE name 1 set name to expire in 1s
EXPIREAT	Set the expiration for a key as a UNIX timestamp			EXPIREAT name 1641213599
KEYS	Find all keys matching pattern (use with caution — heavy; prefer incremental SCAN)			KEYS *, KEYS h?llo, KEYS h*llo, KEYS h[ae]llo
MIGRATE	Atomically transfer a key to a different Redis instance	COPY keep source key; REPLACE replace target key if present		MIGRATE 127.0.0.1 7777 greeting 0 1000 COPY
MOVE	Move a key to a different database (fails if target DB already has the key)			MOVE name 1 move name to DB 1
OBJECT	Return internal metadata about a key	REFCOUNT, ENCODING, IDLETIME		OBJECT REFCOUNT game, OBJECT IDLETIME game, OBJECT ENCODING game
PERSIST	Remove the expiration from a key (make it persistent)			PERSIST k
PEXPIRE	Set a key's TTL in milliseconds			PEXPIRE k 1500
PEXPIREAT	Set key expiration as UNIX timestamp in milliseconds			PEXPIREAT k 1555555555005
PTTL	Return remaining TTL in milliseconds			PTTL k
RANDOMKEY	Return a random key from the current DB			RANDOMKEY
RENAME	Rename a key (overwrites the new key if it exists)			RENAME a b
RENAMENX	Rename a key only if the new key does not exist			RENAMENX a b
RESTORE	Deserialize and restore a key from serialized value			RESTORE k 0 "\x00..." or with TTL RESTORE k 1500 "\x00..."
SORT	Sort elements in a list/set or sorted set and return the result	ASC, DESC, ALPHA, LIMIT offset count, BY, GET, STORE		many advanced examples: see SORT docs
TTL	Return remaining TTL in seconds			TTL k
TYPE	Return the type of the value stored at key			TYPE k
SCAN	Incrementally iterate all keys in the DB (returns cursor; use instead of KEYS in production)	COUNT (hint), MATCH pattern		SCAN 0, SCAN 0 MATCH *11* COUNT 100

String

Command	Description	Params / Notes	Example
APPEND	Append a value to a key (create the key if it does not exist)		APPEND k ext
BITCOUNT	Count set bits in a string value	start, end	BITCOUNT b — e.g. track user daily activity with SETBIT + BITCOUNT
BITOP	Perform bitwise operations between strings and store result	AND, OR, XOR, NOT	BITOP dst k1 k2
DECR	Decrement numeric value by 1 (initialize to 0 if missing)	errors if value is not numeric	DECR k
DECRBY	Decrement by given amount		DECRBY k 100
GET	Get the value of a key		GET k
GETBIT	Return the bit value at offset		GETBIT k 10086
GETRANGE	Get substring of the string value	start, end	GETRANGE k 0 -1, GETRANGE k 1 4
GETSET	Set the string value and return the old value (atomic)	useful for atomic resets	GETSET k 0
INCR	Increment numeric value by 1 (init to 0 if missing)	common for rate limiting combined with EXPIRE	example rate-limiter pattern in original doc
INCRBY	Increment by integer	64-bit signed range	INCRBY k 20
INCRBYFLOAT	Increment by floating point (up to 17 digits precision)		INCRBYFLOAT k 10.5
MGET	Get multiple keys		MGET k1 k2
MSET	Set multiple keys (overwrites existing keys)		MSET k1 1 k2 2
MSETNX	Set multiple keys only if none of the keys exist		MSETNX k1 1 k2 2
PSETEX	Set value and TTL in milliseconds		PSETEX k 1000 "abc"
SET	Set key to hold string value (options: EX seconds, PX ms, NX, XX)	NX set only if not exists, XX set only if exists	SET k "abc" EX 5, SET k "abc" NX
SETBIT	Set or clear bit at offset (string grows; offset in [0,2^32))	large offsets can block server	SETBIT b 10086 1
SETEX	Set value and TTL in seconds		SETEX k 5 "abc"
SETNX	Set if not exists		SETNX k "abc"
SETRANGE	Overwrite part of a string at specified offset	fills with \x00 if offset beyond current length	SETRANGE k 6 "ab"
STRLEN	Return length of the string value		STRLEN k

Hash

Command	Description	Example
HDEL	Delete one or more hash fields (ignored if field does not exist)	HDEL h a b
HEXISTS	Determine if a hash field exists	HEXISTS h a
HGET	Get the value of a hash field	HGET h a
HGETALL	Get all fields and values in a hash as a list	HGETALL h
HINCRBY	Increment the integer value of a hash field by given amount	HINCRBY h a 200
HINCRBYFLOAT	Increment a hash field by a floating point value	field must be string parseable as double
HKEYS	Get all field names in a hash	HKEYS h
HLEN	Get number of fields in a hash	HLEN h
HMGET	Get multiple hash fields	HMGET h key1 key2
HMSET	Set multiple hash fields (deprecated in newer Redis in favor of HSET)	HMSET h k1 v1 k2 v2
HSET	Set the string value of a hash field	HSET h k1 v1
HSETNX	Set field only if it does not exist	HSETNX h k1 v1
HVALS	Get all values in a hash	HVALS h
HSCAN	Incrementally iterate hash fields (see SCAN)

List

Command	Description	Params / Notes	Example
BLPOP	Blocking pop from left across multiple lists (blocks until element available or timeout)	multiple clients can block on same key; pipeline behavior differs; see examples	BLPOP li1 li2 5
BRPOP	Blocking pop from right		BRPOP li 30
BRPOPLPUSH	Blocking pop from right and push to another list atomically		BRPOPLPUSH src dst 5
LINDEX	Get element by index		LINDEX li 0, LINDEX li -1
LINSERT	Insert element before or after pivot element	BEFORE or AFTER	LINSERT h BEFORE "world" "he"
LLEN	Get length of list		LLEN h
LPOP	Remove and return first element		LPOP li
LPUSH	Prepend one or more values to a list (create if missing)	values inserted from left-to-right	LPUSH li a b c
LPUSHX	Prepend only if list exists		LPUSHX li a b c
LRANGE	Get a range of elements from a list		LRANGE li 0 1
LREM	Remove elements equal to value (count >0: from head, <0: from tail, =0: all)		LREM li 2 abc
LSET	Set list element at index	error if index out of range	LSET li 3 "abc"
LTRIM	Trim a list to the specified range	if start > end or out of range result is empty	LTRIM li 1 -1
RPOP	Remove and return last element		RPOP li
RPOPLPUSH	Pop last element and push to another list atomically		RPOPLPUSH src dst
RPUSH	Append one or more values to a list (create if missing)		RPUSH li a b c
RPUSHX	Append only if list exists		RPUSHX li "abc"

Set

Command	Description	Example
SADD	Add one or more members to a set (create if missing)	SADD s "abc" "def"
ZCARD	Return set cardinality	ZCARD s
SDIFF	Return the difference between sets	SDIFF s1 s2
SDIFFSTORE	Store the difference in destination set	SDIFFSTORE s1 s2 s3
SINTER	Return the intersection of sets	SINTER s1 s2
SINTERSTORE	Store the intersection in destination set	SINTERSTORE s1 s2 s3
SISMEMBER	Determine if a given value is a member of a set	SISMEMBER s1 "abc"
SMEMBERS	Return all members of the set (heavy — prefer SSCAN)	SMEMBERS s1
SMOVE	Move a member from one set to another (atomic)	SMOVE src dst "abc"
SPOP	Remove and return a random member	SPOP s1
SRANDMEMBER	Return one or more random members (positive n => unique elements; negative n => allow duplicates)	SRANDMEMBER s1 3
SREM	Remove one or more members	SREM s1 "a" "b" "c"
SUNION	Return the union of sets	SUNION s1 s2
SUNIONSTORE	Store the union in destination set	SUNIONSTORE s1 s2 s3
SSCAN	Incrementally iterate set members (see SCAN)

Zset (Sorted Set)

Command	Description	Params / Notes	Example
ZADD	Add one or more members with scores to a sorted set (update if exists)		ZADD z1 5 a 6 b
ZCARD	Return number of elements in sorted set		ZCARD z1
ZCOUNT	Count elements with scores within range		ZCOUNT z1 2 5
ZINCRBY	Increment member's score by given amount		ZINCRBY z1 10 a
ZRANGE	Return range by rank (ascending)	WITHSCORES	ZRANGE z1 0 -1 WITHSCORES
ZRANGEBYSCORE	Return elements with scores within range	LIMIT, WITHSCORES, ( for exclusive range	ZRANGEBYSCORE z1 1 5
ZRANK	Return the rank of a member (ascending)		ZRANK z1 a
ZREM	Remove one or more members	ZREM z1 a b
ZREMRANGEBYRANK	Remove elements by rank range		ZREMRANGEBYRANK z1 0 1
ZREMRANGEBYSCORE	Remove elements by score range		ZREMRANGEBYSCORE z1 3 5
ZREVRANGE	Return range by rank (descending)		ZREVRANGE z1 0 -1 WITHSCORES
ZREVRANGEBYSCORE	Return elements by score in descending order		ZREVRANGEBYSCORE z1 +inf -inf
ZREVRANK	Return rank of a member (descending)		ZREVRANK z1 a
ZSCORE	Get the score associated with the member		ZSCORE z1 a
ZUNIONSTORE	Compute union of sorted sets and store result	WEIGHTS, `AGGREGATE (SUM	MIN
ZINTERSTORE	Compute intersection and store result		ZINTERSTORE z1 2 z2 z3
ZSCAN	Incrementally iterate sorted set entries

Pub/Sub

Command	Description	Example
PSUBSCRIBE	Subscribe to channels by pattern	PSUBSCRIBE AB*
PUBLISH	Post a message to a channel	PUBLISH ch "hello"
PUBSUB	Inspect pub/sub state	PUBSUB CHANNELS *.abc, PUBSUB NUMSUB ch1 ch2, PUBSUB NUMPAT
PUNSUBSCRIBE	Unsubscribe from pattern subscriptions	PUNSUBSCRIBE AB*
SUBSCRIBE	Subscribe to channels	SUBSCRIBE AB
UNSUBSCRIBE	Unsubscribe from channels	UNSUBSCRIBE AB

Transaction

Command	Description	Example
DISCARD	Discard a transaction — abandon all queued commands	DISCARD
EXEC	Execute all queued commands (fails if WATCHed keys were modified)	MULTI / SET a "xx" / EXEC
MULTI	Start a transaction block
UNWATCH	Unwatch all keys
WATCH	Watch one or more keys for conditional execution	WATCH k1 k2

HyperLogLog

Command	Description	Example
PFADD	Add elements to HyperLogLog	PFADD k1 "k1"
PFCOUNT	Return approximated cardinality	PFCOUNT k1
PFMERGE	Merge multiple HyperLogLogs

Script

Command	Description	Example
EVAL	Evaluate Lua script with provided keys and args	EVAL "return {KEYS[1],KEYS[2],ARGV[1]}" 2 key1 key2 first
EVALSHA	Evaluate script by SHA1	EVALSHA <sha1> 0
SCRIPT EXISTS	Check whether script(s) exist by SHA1	SCRIPT EXISTS <sha1>
SCRIPT FLUSH	Remove all scripts from script cache	SCRIPT FLUSH
SCRIPT KILL	Kill the script currently running	SCRIPT KILL
SCRIPT LOAD	Load a script into the script cache (does not execute it)	SCRIPT LOAD "return 'hello'"

Server

Command	Description	Example
BGREWRITEAOF	Manually trigger AOF rewrite	BGREWRITEAOF
BGSAVE	Asynchronously save the dataset to disk	BGSAVE
CLIENT GETNAME	Get the current connection's name	CLIENT GETNAME
CLIENT KILL	Kill connection by address	CLIENT KILL 127.0.0.1:6379
CLIENT LIST	Return information and statistics about client connections	CLIENT LIST
CLIENT SETNAME	Set the current connection's name	CLIENT SETNAME hello
CONFIG GET	Get runtime configuration parameters	CONFIG GET s*, CONFIG GET slowlog-max-len
CONFIG RESETSTAT	Reset various statistics (keyspace hits/misses, commands processed, etc.)	CONFIG RESETSTAT
CONFIG REWRITE	Rewrite redis.conf atomically	CONFIG SET appendonly yes then CONFIG REWRITE
CONFIG SET	Set runtime configuration parameter	CONFIG SET appendonly yes
DBSIZE	Return number of keys in the current DB	DBSIZE
DEBUG OBJECT	(debug) Return internal representation info for an object	DEBUG OBJECT obj

[TOC]

Key

Command	Description	Options	Time Complexity	Example
DEL	Delete one or more given keys (non-existing keys are ignored); returns number of deleted keys			DEL name1 name2 delete keys name1 and name2
DUMP	Serialize the value stored at key and return the serialized value			DUMP name serialize value at key name
EXISTS	Check if a key exists (returns 1 if it does)			EXISTS name
EXPIRE	Set a timeout on a key (precision: since Redis 2.6 ms precision)			EXPIRE name 1 set key name to expire in 1s
EXPIREAT	Set expiration as Unix timestamp			EXPIREAT name 1641213599
KEYS	Find all keys matching a pattern (use with caution — may be slow; prefer incremental iteration commands)			KEYS *, KEYS h?llo, KEYS h*llo, KEYS h[ae]llo
MIGRATE	Atomically migrate a key from this instance to another instance's DB	COPY (do not remove from source) REPLACE (replace existing target)		MIGRATE 127.0.0.1 7777 greeting 0 1000 COPY
MOVE	Move a key to another database on the same instance (fails if target db has key)			MOVE name 1
OBJECT	Return metadata about a key	REFCOUNT, ENCODING, IDLETIME		OBJECT REFCOUNT game, OBJECT IDLETIME game, OBJECT ENCODING game
PERSIST	Remove the existing timeout on a key (make it persistent)			PERSIST k
PEXPIRE	Set key expiration in milliseconds			PEXPIRE k 1500
PEXPIREAT	Set expiration as Unix timestamp in milliseconds			PEXPIREAT k 1555555555005
PTTL	Return remaining TTL of a key in milliseconds			PTTL k
RANDOMKEY	Return a random key from the currently selected database			RANDOMKEY
RENAME	Rename a key (overwrites the new key if it exists)			RENAME a b
RENAMENX	Rename a key only if the new key does not exist			RENAMENX a b
RESTORE	Deserialize a value and create the key			RESTORE k 0 "..." or RESTORE k 1500 "..."
SORT	Sort elements in a list, set or sorted set and return the sorted result	ASC / DESC, ALPHA, LIMIT [offset] [count], BY, GET, STORE		many options — see examples in source file
TTL	Return remaining TTL of a key in seconds			TTL k
TYPE	Return the type of the value stored at key			TYPE k
SCAN	Incrementally iterate all keys in the database (returns a cursor; 0 means finished) — preferred over KEYS in production	COUNT (hint), MATCH (pattern)		SCAN 0, SCAN 0 MATCH *11* COUNT 100

String

Command	Description	Params / Notes	Time Complexity	Example
APPEND	Append value to the string at key (create key if not exists)			APPEND k ext
BITCOUNT	Count set bits (1s) in a string	start, end offsets		BITCOUNT b
BITOP	Perform bitwise operations between strings and store result	AND, OR, XOR, NOT		BITOP dst k1 k2
DECR	Decrement numeric value by 1 (create key as 0 if missing)	Error if value is not numeric		DECR k
DECRBY	Decrement numeric value by given amount			DECRBY k 100
GET	Get the value of a key			GET k
GETBIT	Return bit value at offset in string			GETBIT k 10086
GETRANGE	Get substring of the string value	start, end indexes		GETRANGE k 0 -1, GETRANGE k 1 4
GETSET	Atomically set key to value and return old value	Useful for atomic swaps / resets		GETSET k 0
INCR	Increment numeric value by 1 (create 0 if missing)	Useful for counters combined with EXPIRE for rate limiting		rate limiter example in source file
INCRBY	Increment by given integer (64-bit signed)			INCRBY k 20
INCRBYFLOAT	Increment by given float (up to 17 decimal digits)			INCRBYFLOAT k 10.5
MGET	Get values of multiple keys			MGET k1 k2
MSET	Set multiple keys to multiple values (overwrite existing keys)			MSET k1 1 k2 2
MSETNX	Set multiple keys, only if none of the keys exist			MSETNX k1 1 k2 2
PSETEX	Set the value and expiration in milliseconds			PSETEX k 1000 "abc"
SET	Set key to hold the string value	EX seconds, PX milliseconds, NX set if not exists, XX set only if exists		SET k 1, SET k "abc" EX 5, SET k "abc" NX
SETBIT	Set or clear bit at offset (string grows with zeros)	Offset range [0, 2^32) — large offsets may block Redis		SETBIT b 10086 1
SETEX	Set value and expiration in seconds			SETEX k 5 "abc"
SETNX	Set key if it does not already exist			SETNX k "abc"
SETRANGE	Overwrite part of the string at key starting at the specified offset	Fills with zero bytes if offset is beyond current length		SETRANGE k 6 "ab"
STRLEN	Return the length of the string value			STRLEN k

Hash

Command	Description	Time Complexity	Example
HDEL	Remove one or more specified fields from a hash (non-existing fields ignored)		HDEL h a b
HEXISTS	Determine if a field exists in a hash		HEXISTS h a
HGET	Get the value of a hash field		HGET h a
HGETALL	Return all fields and values of the hash as a list		HGETALL h
HINCRBY	Increment the integer value of a hash field by the given amount (64-bit)		HINCRBY h a 200
HINCRBYFLOAT	Increment the float value of a hash field	Field value must be a string parseable as double
HKEYS	Get all field names in a hash		HKEYS h
HLEN	Get the number of fields in a hash		HLEN h
HMGET	Get the values of multiple hash fields		HMGET h key1 key2
HMSET	Set multiple fields in a hash (deprecated in newer Redis in favor of HSET with multiple pairs)		HMSET h k1 v1 k2 v2
HSET	Set the string value of a hash field		HSET h k1 v1
HSETNX	Set the value of a hash field, only if the field does not exist		HSETNX h k1 v1
HVALS	Get all values in a hash		HVALS h
HSCAN	Incremental iteration over hash fields (see SCAN)

List

Command	Description	Params / Notes	Time Complexity	Example
BLPOP	Blocking pop from multiple lists' heads (blocks until timeout or pushed)	Multiple clients can block on the same keys; first-BLPOP-first-served ordering; in pipelining BLPOP does not block		BLPOP li1 li2 li3 or BLPOP li1 li2 5
BRPOP	Blocking pop from multiple lists' tails			BRPOP li 30
BRPOPLPUSH	Blocking pop from tail of source and push to head of destination (atomic)			BRPOPLPUSH src dst 5
LINDEX	Get element at index			LINDEX li 0, LINDEX li -1
LINSERT	Insert value before or after pivot element	BEFORE / AFTER		LINSERT h BEFORE "world" "he"
LLEN	Get list length			LLEN h
LPOP	Remove and return the first element			LPOP li
LPUSH	Push values to the head (left) — creates list if not exists	Values are inserted from left to right (resulting order: last argument becomes head)		LPUSH li a b c
LPUSHX	Push to head only if list exists			LPUSHX li a b c
LRANGE	Return a range of elements			LRANGE li 0 0, LRANGE li 0 1
LREM	Remove elements equal to value — n>0 from head, n<0 from tail, n=0 all			LREM li 2 abc, LREM li -2 abc, LREM li 0 abc
LSET	Set list element at index (error if out of range)			LSET li 3 "abc"
LTRIM	Trim list to specified range (clear list if start>stop)			LTRIM li 1 -1
RPOP	Remove and return the last element			RPOP li
RPOPLPUSH	Atomically pop from tail and push to another list's head	Can be used with same source and destination		RPOPLPUSH src dst
RPUSH	Push values to the tail (right) — creates list if not exists			RPUSH li a b c
RPUSHX	Push to tail only if list exists			RPUSHX li "abc"

Set

Command	Description	Time Complexity	Example
SADD	Add one or more members to a set (create set if not exists)		SADD s "abc" "def"
SCARD	Return set cardinality		ZCARD s (note: for sorted sets use ZCARD)
SDIFF	Subtract multiple sets		SDIFF s1 s2
SDIFFSTORE	Subtract and store result in destination set		SDIFFSTORE s1 s2 s3
SINTER	Intersect multiple sets		SINTER s1 s2
SINTERSTORE	Intersect and store result		SINTERSTORE s1 s2 s3
SISMEMBER	Test membership		SISMEMBER s1 "abc"
SMEMBERS	Return all members (use SCAN for production to avoid performance issues)		SMEMBERS s1
SMOVE	Move a member from one set to another (atomic)		SMOVE src dst "abc"
SPOP	Remove and return a random member		SPOP s1
SRANDMEMBER	Return random members (unique if positive count less than size; may repeat if negative count)		SRANDMEMBER s1 3
SREM	Remove one or more members from a set		SREM s1 "a" "b" "c"
SUNION	Return union of sets		SUNION s1 s2
SUNIONSTORE	Union and store result		SUNIONSTORE s1 s2 s3
SSCAN	Incremental iteration over set members (see SCAN)

Sorted Set (Zset)

Command	Description	Params / Notes	Time Complexity	Example
ZADD	Add one or more members with scores (update if exists)			ZADD z1 5 a 6 b
ZCARD	Return number of elements in sorted set			ZCARD z1
ZCOUNT	Count elements with score within range			ZCOUNT z1 2 5
ZINCRBY	Increment score of member by given amount			ZINCRBY z1 10 a
ZRANGE	Return elements in range by rank (ascending)	WITHSCORES option to return scores		ZRANGE z1 0 -1 WITHSCORES
ZRANGEBYSCORE	Return elements in score range	LIMIT, WITHSCORES, use ( for exclusive range		ZRANGEBYSCORE z1 1 5
ZRANK	Determine rank of member (ascending)			ZRANK z1 a
ZREM	Remove one or more members			ZREM z1 a b
ZREMRANGEBYRANK	Remove elements by rank range			ZREMRANGEBYRANK z1 0 1
ZREMRANGEBYSCORE	Remove elements by score range			ZREMRANGEBYSCORE z1 3 5
ZREVRANGE	Return range in reverse order (descending)	WITHSCORES available		ZREVRANGE z1 0 -1 WITHSCORES
ZREVRANGEBYSCORE	Return elements by score in reverse order			ZREVRANGEBYSCORE z1 +inf -inf
ZREVRANK	Return rank of member (descending)			ZREVRANK z1 a
ZSCORE	Return the score of a member			ZSCORE z1 a
ZUNIONSTORE	Union multiple zsets into destination with optional WEIGHTS and AGGREGATE	AGGREGATE can be SUM (default), MIN, MAX		ZUNIONSTORE z1 2 z2 z3 WEIGHTS 1 3
ZINTERSTORE	Intersect multiple zsets into destination			ZINTERSTORE z1 2 z2 z3
ZSCAN	Incremental iteration over sorted set

Pub/Sub

Command	Description	Time Complexity	Example
PSUBSCRIBE	Subscribe to channels matching a pattern		PSUBSCRIBE AB*
PUBLISH	Publish a message to a channel		PUBLISH ch "hello"
PUBSUB	Inspect the Pub/Sub system		PUBSUB CHANNELS *.abc, PUBSUB NUMSUB ch1 ch2, PUBSUB NUMPAT
PUNSUBSCRIBE	Unsubscribe from pattern subscriptions		PUNSUBSCRIBE AB*
SUBSCRIBE	Subscribe to channels		SUBSCRIBE AB
UNSUBSCRIBE	Unsubscribe from channels		UNSUBSCRIBE AB

Transaction

Command	Description	Example
DISCARD	Discard the queued commands in a transaction	DISCARD
EXEC	Execute all queued commands (aborts if watched keys were modified)	MULTI / SET a "xx" / EXEC
MULTI	Mark the start of a transaction block
UNWATCH	Forget all watched keys
WATCH	Watch one or more keys for conditional execution at EXEC	WATCH k1 k2

HyperLogLog

Command	Description	Example
PFADD	Add elements to HyperLogLog	PFADD k1 "k1"
PFCOUNT	Return approximate cardinality	PFCOUNT k1
PFMERGE	Merge multiple HyperLogLogs

Scripting

Command	Description	Example
EVAL	Execute a Lua script with given keys and args	EVAL "return {KEYS[1],KEYS[2],ARGV[1]}" 2 key1 key2 first
EVALSHA	Execute a cached script by SHA1	EVALSHA <sha1> 0
SCRIPT EXISTS	Check if script SHA exists	SCRIPT EXISTS <sha1>
SCRIPT FLUSH	Remove all scripts from script cache	SCRIPT FLUSH
SCRIPT KILL	Kill the currently running script	SCRIPT KILL
SCRIPT LOAD	Load a script into the script cache (do not run)	SCRIPT LOAD "return 'hello'"

Server

Command	Description	Example
BGREWRITEAOF	Manually trigger AOF rewrite	BGREWRITEAOF
BGSAVE	Asynchronously save dataset to disk (background)	BGSAVE
CLIENT GETNAME	Return the current connection's name	CLIENT GETNAME
CLIENT KILL	Kill the connection for a given address	CLIENT KILL 127.0.0.1:6379
CLIENT LIST	List client connections and statistics	CLIENT LIST
CLIENT SETNAME	Set the current connection's name	CLIENT SETNAME hello
CONFIG GET	Get runtime configuration parameters	CONFIG GET s*, CONFIG GET slowlog-max-len
CONFIG RESETSTAT	Reset various statistics (keyspace hits/misses, commands processed, etc.)	CONFIG RESETSTAT
CONFIG REWRITE	Atomically rewrite redis.conf with current config	CONFIG SET appendonly yes / CONFIG REWRITE
CONFIG SET	Set a configuration parameter at runtime	CONFIG SET appendonly yes
DBSIZE	Return the number of keys in the selected database	DBSIZE
DEBUG OBJECT	Debugging command — return internal object info	DEBUG OBJECT obj