Redis Cheat Sheet

This is a redis quick reference cheat sheet that lists examples of redis commands

Database

Cache

Redis Cheat Sheet

Miscellaneous

Pubsub

-	-
PSUBSCRIBE	Listen for messages published to channels matching the given patterns
PUBSUB	Inspect the state of the Pub/Sub subsystem
PUBLISH	Post a message to a channel
PUNSUBSCRIBE	Stop listening for messages posted to channels matching the given patterns
SUBSCRIBE	Listen for messages published to the given channels
UNSUBSCRIBE	Stop listening for messages posted to the given channels

Scripting

-	-
EVAL	Execute a Lua script server side
EVALSHA	Execute a Lua script server side
SCRIPT DEBUG	Set the debug mode for executed scripts.
SCRIPT EXISTS	Check existence of scripts in the script cache.
SCRIPT FLUSH	Remove all the scripts from the script cache.
SCRIPT KILL	Kill the script currently in execution.
SCRIPT LOAD	Load the specified Lua script into the script cache.

Transactions

-	-
DISCARD	Discard all commands issued after MULTI
EXEC	Execute all commands issued after MULTI
MULTI	Mark the start of a transaction block
UNWATCH	Forget about all watched keys
WATCH	Watch the given keys to determine execution of the MULTI/EXEC block

Cluster

-	-
CLUSTER ADDSLOTS	Assign new hash slots to receiving node
CLUSTER BUMPEPOCH	Advance the cluster config epoch
CLUSTER COUNT-FAILURE-REPORTS	Return the number of failure reports active for a given node
CLUSTER COUNTKEYSINSLOT	Return the number of local keys in the specified hash slot
CLUSTER DELSLOTS	Set hash slots as unbound in receiving node
CLUSTER FAILOVER	Forces a replica to perform a manual failover of its master.
CLUSTER FLUSHSLOTS	Delete a node's own slots information
CLUSTER FORGET	Remove a node from the nodes table
CLUSTER GETKEYSINSLOT	Return local key names in the specified hash slot
CLUSTER INFO	Provides info about Redis Cluster node state
CLUSTER KEYSLOT	Returns the hash slot of the specified key
CLUSTER MEET	Force a node cluster to handshake with another node
CLUSTER MYID	Return the node id
CLUSTER NODES	Get Cluster config for the node
CLUSTER REPLICATE	Reconfigure a node as a replica of the specified master node
CLUSTER RESET	Reset a Redis Cluster node
CLUSTER SAVECONFIG	Forces the node to save cluster state on disk
CLUSTER SET-CONFIG-EPOCH	Set the configuration epoch in a new node
CLUSTER SETSLOT	Bind a hash slot to a specific node
CLUSTER SLAVES	List replica nodes of the specified master node
CLUSTER REPLICAS	List replica nodes of the specified master node
CLUSTER SLOTS	Get array of Cluster slot to node mappings
READONLY	Enables read queries for a connection to a cluster replica node
READWRITE	Disables read queries for a connection to a cluster replica node

Redis Stream command

XACK

XACK key group ID [ID ...]

#Example

redis> XACK mystream mygroup 1526569495631-0
ERR Unknown or disabled command 'XACK'

Marks a pending message as correctly processed, effectively removing it from the pending entries list of the consumer group. Return value of the command is the number of messages successfully acknowledged, that is, the IDs we were actually able to resolve in the PEL.

XLEN

XLEN key

#Example

redis> XADD mystream \* item 1
"1609040580250-0"
redis> XADD mystream \* item 2
"1609040580250-1"
redis> XADD mystream \* item 3
"1609040580251-0"
redis> XLEN mystream
(integer) 3

Return the number of entries in a stream

XREVRANGE

XREVRANGE key end start [COUNT count]

#Example

redis> XADD writers \* name Virginia surname Woolf
"1609040579130-0"
redis> XADD writers \* name Jane surname Austen
"1609040579130-1"
redis> XADD writers \* name Toni surname Morrison
"1609040579130-2"
redis> XADD writers \* name Agatha surname Christie
"1609040579131-0"
redis> XADD writers \* name Ngozi surname Adichie
"1609040579131-1"
redis> XLEN writers
(integer) 5
redis> XREVRANGE writers + - COUNT 1
1) 1) "1609040579131-1"
   2) 1) "name"
      2) "Ngozi"
      3) "surname"
      4) "Adichie"

Return a range of elements in a stream, with IDs matching the specified IDs interval, in reverse order (from greater to smaller IDs) compared to XRANGE

XRANGE

XRANGE key start end [COUNT count]

#Example

redis> XADD writers \* name Virginia surname Woolf
"1609040578002-0"
redis> XADD writers \* name Jane surname Austen
"1609040578002-1"
redis> XADD writers \* name Toni surname Morrison
"1609040578003-0"
redis> XADD writers \* name Agatha surname Christie
"1609040578003-1"
redis> XADD writers \* name Ngozi surname Adichie
"1609040578003-2"
redis> XLEN writers
(integer) 5
redis> XRANGE writers - + COUNT 2
1) 1) "1609040578002-0"
   2) 1) "name"
      2) "Virginia"
      3) "surname"
      4) "Woolf"
2) 1) "1609040578002-1"
   2) 1) "name"
      2) "Jane"
      3) "surname"
      4) "Austen"

Return a range of elements in a stream, with IDs matching the specified IDs interval

XTRIM

XTRIM key MAXLEN [=|~] length

#Example

redis> XADD mystream \* field1 A field2 B field3 C field4 D
"1609040575750-0"
redis> XTRIM mystream MAXLEN 2
(integer) 0
redis> XRANGE mystream - +
1) 1) "1609040575750-0"
   2) 1) "field1"
      2) "A"
      3) "field2"
      4) "B"
      5) "field3"
      6) "C"
      7) "field4"
      8) "D"

Trims the stream to (approximately if '~' is passed) a certain size

XADD

XADD key [MAXLEN [=|~] length] [NOMKSTREAM] *|ID field value [field value ...]

#Example

redis> XADD mystream \* name Sara surname OConnor
"1609040574632-0"
redis> XADD mystream \* field1 value1 field2 value2 field3 value3
"1609040574632-1"
redis> XLEN mystream
(integer) 2
redis> XRANGE mystream - +
1) 1) "1609040574632-0"
   2) 1) "name"
      2) "Sara"
      3) "surname"
      4) "OConnor"
2) 1) "1609040574632-1"
   2) 1) "field1"
      2) "value1"
      3) "field2"
      4) "value2"
      5) "field3"
      6) "value3"

Appends a new entry to a stream

Redis Connection command

PING

PING [message]

#Example

redis> PING
"PONG"
redis> PING "hello world"
"hello world"

Ping the server

ECHO

ECHO message

#Example

redis> ECHO "Hello World!"
"Hello World!"

Echo the given string

CLIENT INFO

CLIENT INFO

#Example

redis> CLIENT INFO
"id=55542 addr=127.0.0.1:58710 laddr=127.0.0.1:6379 fd=8 name= age=114920 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=26 qbuf-free=40928 argv-mem=10 obl=0 oll=0 omem=0 tot-mem=61466 events=r cmd=client user=default redir=-1\n"

Returns information about the current client connection.

CLIENT ID

CLIENT ID

#Example

redis> CLIENT ID
ERR Unknown or disabled command 'CLIENT'

Returns the client ID for the current connection

Redis Generic command

UNLINK

UNLINK key [key ...]

#Example

redis> SET key1 "Hello"
"OK"
redis> SET key2 "World"
"OK"
redis> UNLINK key1 key2 key3
(integer) 2

Delete a key asynchronously in another thread. Otherwise it is just as DEL, but non blocking.

TYPE

TYPE key

#Example

redis> SET key1 "value"
"OK"
redis> LPUSH key2 "value"
(integer) 1
redis> SADD key3 "value"
(integer) 1
redis> TYPE key1
"string"
redis> TYPE key2
"list"
redis> TYPE key3
"set"

Determine the type stored at key

TTL

TTL key

#Example

redis> SET mykey "Hello"
"OK"
redis> EXPIRE mykey 10
(integer) 1
redis> TTL mykey
(integer) 10

Get the time to live for a key

TOUCH

TOUCH key [key ...]

#Example

redis> SET key1 "Hello"
"OK"
redis> SET key2 "World"
"OK"
redis> TOUCH key1 key2
(integer) 2

Alters the last access time of a key(s). Returns the number of existing keys specified.

RENAMENX

RENAMENX key newkey

#Example

redis> SET mykey "Hello"
"OK"
redis> SET myotherkey "World"
"OK"
redis> RENAMENX mykey myotherkey
(integer) 0
redis> GET myotherkey
"World"

Rename a key, only if the new key does not exist

RENAME

RENAME key newkey

#Example

redis> SET mykey "Hello"
"OK"
redis> RENAME mykey myotherkey
"OK"
redis> GET myotherkey
"Hello"

Rename a key

PTTL

PTTL key

#Example

redis> SET mykey "Hello"
"OK"
redis> EXPIRE mykey 1
(integer) 1
redis> PTTL mykey
(integer) 1000

Get the time to live for a key in milliseconds

PEXPIREAT

PEXPIREAT key milliseconds-timestamp

#Example

redis> SET mykey "Hello"
"OK"
redis> PEXPIREAT mykey 1555555555005
(integer) 1
redis> TTL mykey
(integer) -2
redis> PTTL mykey
(integer) -2

Set the expiration for a key as a UNIX timestamp specified in milliseconds

PEXPIRE

PEXPIRE key milliseconds

#Example

redis> SET mykey "Hello"
"OK"
redis> PEXPIRE mykey 1500
(integer) 1
redis> TTL mykey
(integer) 1
redis> PTTL mykey
(integer) 1499

Set a key's time to live in milliseconds

PERSIST

PERSIST key

#Example

redis> SET mykey "Hello"
"OK"
redis> EXPIRE mykey 10
(integer) 1
redis> TTL mykey
(integer) 10
redis> PERSIST mykey
(integer) 1
redis> TTL mykey
(integer) -1

Remove the expiration from a key

KEYS

KEYS pattern

#Example

redis> MSET firstname Jack lastname Stuntman age 35
"OK"
redis> KEYS \*name\*
1) "firstname"
2) "lastname"
redis> KEYS a??
1) "age"
redis> KEYS \*
1) "firstname"
2) "age"
3) "lastname"

Find all keys matching the given pattern

EXPIREAT

EXPIREAT key timestamp

#Example

redis> SET mykey "Hello"
"OK"
redis> EXISTS mykey
(integer) 1
redis> EXPIREAT mykey 1293840000
(integer) 1
redis> EXISTS mykey
(integer) 0

Set the expiration for a key as a UNIX timestamp

EXPIRE

EXPIRE key seconds

#Example

redis> SET mykey "Hello"
"OK"
redis> EXPIRE mykey 10
(integer) 1
redis> TTL mykey
(integer) 10
redis> SET mykey "Hello World"
"OK"
redis> TTL mykey
(integer) -1

Set a key's time to live in seconds

EXISTS

EXISTS key [key ...]

#Example

redis> SET key1 "Hello"
"OK"
redis> EXISTS key1
(integer) 1
redis> EXISTS nosuchkey
(integer) 0
redis> SET key2 "World"
"OK"
redis> EXISTS key1 key2 nosuchkey
(integer) 2

Determine if a key exists

DUMP

DUMP key

#Example

redis> SET mykey 10
"OK"
redis> DUMP mykey
"\u0000\xC0\n\t\u0000\xBEm\u0006\x89Z(\u0000\n"

Return a serialized version of the value stored at the specified key.

DEL

DEL key [key ...]

#Example

redis> SET key1 "Hello"
"OK"
redis> SET key2 "World"
"OK"
redis> DEL key1 key2 key3
(integer) 2

Delete a key

Redis Server command

TIME

TIME

#Example

redis> TIME
1) "1609040690"
2) "558952"
redis> TIME
1) "1609040690"
2) "559206"

Return the current server time

ROLE

ROLE

#Example

redis> ROLE
1) "master"
2) (integer) 0
3) (empty list or set)

Return the role of the instance in the context of replication

INFO

INFO [section]

#Example

redis> INFO
# Server
redis_version:6.1.240
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:a26db646ea64a07c
redis_mode:standalone
os:Linux 5.4.0-1017-aws x86_64
......

Get information and statistics about the server

COMMAND INFO

COMMAND INFO command-name [command-name ...]

#Example

redis> COMMAND INFO get set eval
1) 1) "get"
   2) (integer) 2
   3) 1) "readonly"
      2) "fast"
   4) (integer) 1
   5) (integer) 1
   6) (integer) 1
   7) 1) "@read"
      2) "@string"
      3) "@fast"
2) 1) "set"
   2) (integer) -3
   3) 1) "write"
      2) "denyoom"
   4) (integer) 1
   5) (integer) 1
   6) (integer) 1
   7) 1) "@write"
      2) "@string"
      3) "@slow"
3) 1) "eval"
   2) (integer) -3
   3) 1) "noscript"
      2) "movablekeys"
   4) (integer) 0
   5) (integer) 0
   6) (integer) 0
   7) 1) "@slow"
      2) "@scripting"

Get array of specific Redis command details

COMMAND GETKEYS

COMMAND GETKEYS

#Example

redis> COMMAND GETKEYS MSET a b c d e f
1) "a"
2) "c"
3) "e"
redis> COMMAND GETKEYS EVAL "not consulted" 3 key1 key2 key3 arg1 arg2 arg3 argN
1) "key1"
2) "key2"
3) "key3"
redis> COMMAND GETKEYS SORT mylist ALPHA STORE outlist
1) "mylist"
2) "outlist"

Extract keys given a full Redis command

COMMAND COUNT

COMMAND COUNT

#Example

redis> COMMAND COUNT
(integer) 217

Get total number of Redis commands

COMMAND

COMMAND

#Example

redis> COMMAND
1) 1) "georadius_ro"
     2) (integer) -6
     3) 1) "readonly"
        2) "movablekeys"
     4) (integer) 1
     5) (integer) 1
     6) (integer) 1
     7) 1) "@read"
        2) "@geo"
        3) "@slow"
  2) 1) "zpopmin"
     2) (integer) -2
     3) 1) "write"
        2) "fast"
  ........

Get array of Redis command details

Redis Hyperloglog command

PFMERGE

PFMERGE destkey sourcekey [sourcekey ...]

#Example

redis> PFADD hll1 foo bar zap a
(integer) 1
redis> PFADD hll2 a b c foo
(integer) 1
redis> PFMERGE hll3 hll1 hll2
"OK"
redis> PFCOUNT hll3
(integer) 6

Merge N different HyperLogLogs into a single one.

PFCOUNT

PFCOUNT key [key ...]

#Example

redis> PFADD hll foo bar zap
(integer) 1
redis> PFADD hll zap zap zap
(integer) 0
redis> PFADD hll foo bar
(integer) 0
redis> PFCOUNT hll
(integer) 3
redis> PFADD some-other-hll 1 2 3
(integer) 1
redis> PFCOUNT hll some-other-hll
(integer) 6

Return the approximated cardinality of the set(s) observed by the HyperLogLog at key(s).

PFADD

PFADD key element [element ...]

#Example

redis> PFADD hll a b c d e f g
(integer) 1
redis> PFCOUNT hll
(integer) 7

Adds the specified elements to the specified HyperLogLog.

Redis Geo command

GEOSEARCH

GEOSEARCH key [FROMMEMBER member] [FROMLONLAT longitude latitude] [BYRADIUS radius m|km|ft|mi] [BYBOX width height m|km|ft|mi] [ASC|DESC] [COUNT count] [WITHCOORD] [WITHDIST] [WITHHASH]

#Example

redis> GEOADD Sicily 13.361389 38.115556 "Palermo" 15.087269 37.502669 "Catania"
(integer) 2
redis> GEOADD Sicily 12.758489 38.788135 "edge1" 17.241510 38.788135 "edge2"
(integer) 2
redis> GEOSEARCH Sicily FROMLONLAT 15 37 BYRADIUS 200 km ASC
1) "Catania"
2) "Palermo"
redis> GEOSEARCH Sicily FROMLONLAT 15 37 BYBOX 400 400 km ASC
1) "Catania"
2) "Palermo"
3) "edge2"
4) "edge1"

Query a sorted set representing a geospatial index to fetch members inside an area of a box or a circle.

GEORADIUSBYMEMBER

GEORADIUSBYMEMBER key member radius m|km|ft|mi [WITHCOORD] [WITHDIST] [WITHHASH] [COUNT count] [ASC|DESC] [STORE key] [STOREDIST key]

#Example

redis> GEOADD Sicily 13.583333 37.316667 "Agrigento"
(integer) 1
redis> GEOADD Sicily 13.361389 38.115556 "Palermo" 15.087269 37.502669 "Catania"
(integer) 2
redis> GEORADIUSBYMEMBER Sicily Agrigento 100 km
1) "Agrigento"
2) "Palermo"

Query a sorted set representing a geospatial index to fetch members matching a given maximum distance from a member

GEORADIUS

GEORADIUS key longitude latitude radius m|km|ft|mi [WITHCOORD] [WITHDIST] [WITHHASH] [COUNT count] [ASC|DESC] [STORE key] [STOREDIST key]

#Example

redis> GEOADD Sicily 13.361389 38.115556 "Palermo" 15.087269 37.502669 "Catania"
(integer) 2
redis> GEORADIUS Sicily 15 37 200 km WITHDIST
1) 1) "Palermo"
   2) "190.4424"
2) 1) "Catania"
   2) "56.4413"
redis> GEORADIUS Sicily 15 37 200 km WITHCOORD
1) 1) "Palermo"
   2) 1) "13.36138933897018433"
      2) "38.11555639549629859"
2) 1) "Catania"
   2) 1) "15.08726745843887329"
      2) "37.50266842333162032"
redis> GEORADIUS Sicily 15 37 200 km WITHDIST WITHCOORD
1) 1) "Palermo"
   2) "190.4424"
   3) 1) "13.36138933897018433"
      2) "38.11555639549629859"
2) 1) "Catania"
   2) "56.4413"
   3) 1) "15.08726745843887329"
      2) "37.50266842333162032"

Query a sorted set representing a geospatial index to fetch members matching a given maximum distance from a point

GEODIST

GEODIST key member1 member2 [m|km|ft|mi]

#Example

redis> GEOADD Sicily 13.361389 38.115556 "Palermo" 15.087269 37.502669 "Catania"
(integer) 2
redis> GEODIST Sicily Palermo Catania
"166274.1516"
redis> GEODIST Sicily Palermo Catania km
"166.2742"
redis> GEODIST Sicily Palermo Catania mi
"103.3182"
redis> GEODIST Sicily Foo Bar
(nil)

Returns the distance between two members of a geospatial index

GEOPOS

GEOPOS key member [member ...]

#Example

redis> GEOADD Sicily 13.361389 38.115556 "Palermo" 15.087269 37.502669 "Catania"
(integer) 2
redis> GEOPOS Sicily Palermo Catania NonExisting
1) 1) "13.36138933897018433"
   2) "38.11555639549629859"
2) 1) "15.08726745843887329"
   2) "37.50266842333162032"
3) (nil)

Returns longitude and latitude of members of a geospatial index

GEOHASH

GEOHASH key member [member ...]

#Example

redis> GEOADD Sicily 13.361389 38.115556 "Palermo" 15.087269 37.502669 "Catania"
(integer) 2
redis> GEOHASH Sicily Palermo Catania
1) "sqc8b49rny0"
2) "sqdtr74hyu0"

Returns members of a geospatial index as standard geohash strings

GEOADD

GEOADD key longitude latitude member [longitude latitude member ...]

#Example

redis> GEOADD Sicily 13.361389 38.115556 "Palermo" 15.087269 37.502669 "Catania"
(integer) 2
redis> GEODIST Sicily Palermo Catania
"166274.1516"
redis> GEORADIUS Sicily 15 37 100 km
1) "Catania"
redis> GEORADIUS Sicily 15 37 200 km
1) "Palermo"
2) "Catania"

Add one or more geospatial items in the geospatial index represented using a sorted set

Redis Sorted set command

ZUNIONSTORE

ZUNIONSTORE destination numkeys key [key ...] [WEIGHTS weight [weight ...]] [AGGREGATE SUM|MIN|MAX]

#Example

redis> ZADD zset1 1 "one"
(integer) 1
redis> ZADD zset1 2 "two"
(integer) 1
redis> ZADD zset2 1 "one"
(integer) 1
redis> ZADD zset2 2 "two"
(integer) 1
redis> ZADD zset2 3 "three"
(integer) 1
redis> ZUNIONSTORE out 2 zset1 zset2 WEIGHTS 2 3
(integer) 3
redis> ZRANGE out 0 -1 WITHSCORES
1) "one"
2) "5"
3) "three"
4) "9"
5) "two"
6) "10"

Add multiple sorted sets and store the resulting sorted set in a new key

ZMSCORE

ZMSCORE key member [member ...]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZMSCORE myzset "one" "two" "nofield"
1) "1"
2) "2"
3) (nil)

Get the score associated with the given members in a sorted set

ZUNION

ZUNION numkeys key [key ...] [WEIGHTS weight [weight ...]] [AGGREGATE SUM|MIN|MAX] [WITHSCORES]

#Example

redis> ZADD zset1 1 "one"
(integer) 1
redis> ZADD zset1 2 "two"
(integer) 1
redis> ZADD zset2 1 "one"
(integer) 1
redis> ZADD zset2 2 "two"
(integer) 1
redis> ZADD zset2 3 "three"
(integer) 1
redis> ZUNION 2 zset1 zset2
1) "one"
2) "three"
3) "two"
redis> ZUNION 2 zset1 zset2 WITHSCORES
1) "one"
2) "2"
3) "three"
4) "3"
5) "two"
6) "4"

Add multiple sorted sets

ZREVRANK

ZREVRANK key member

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZREVRANK myzset "one"
(integer) 2
redis> ZREVRANK myzset "four"
(nil)

Determine the index of a member in a sorted set, with scores ordered from high to low

ZREVRANGEBYSCORE

ZREVRANGEBYSCORE key max min [WITHSCORES] [LIMIT offset count]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZREVRANGEBYSCORE myzset +inf -inf
1) "three"
2) "two"
3) "one"
redis> ZREVRANGEBYSCORE myzset 2 1
1) "two"
2) "one"
redis> ZREVRANGEBYSCORE myzset 2 (1
1) "two"
redis> ZREVRANGEBYSCORE myzset (2 (1
(empty list or set)

Return a range of members in a sorted set, by score, with scores ordered from high to low

ZREVRANGE

ZREVRANGE key start stop [WITHSCORES]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZREVRANGE myzset 0 -1
1) "three"
2) "two"
3) "one"
redis> ZREVRANGE myzset 2 3
1) "one"
redis> ZREVRANGE myzset -2 -1
1) "two"
2) "one"

Return a range of members in a sorted set, by index, with scores ordered from high to low

ZREMRANGEBYSCORE

ZREMRANGEBYSCORE key min max

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZREMRANGEBYSCORE myzset -inf (2
(integer) 1
redis> ZRANGE myzset 0 -1 WITHSCORES
1) "two"
2) "2"
3) "three"
4) "3"

Remove all members in a sorted set within the given scores

ZREMRANGEBYRANK

ZREMRANGEBYRANK key start stop

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZREMRANGEBYRANK myzset 0 1
(integer) 2
redis> ZRANGE myzset 0 -1 WITHSCORES
1) "three"
2) "3"

Remove all members in a sorted set within the given indexes

ZREMRANGEBYLEX

ZREMRANGEBYLEX key min max

#Example

redis> ZADD myzset 0 aaaa 0 b 0 c 0 d 0 e
(integer) 5
redis> ZADD myzset 0 foo 0 zap 0 zip 0 ALPHA 0 alpha
(integer) 5
redis> ZRANGE myzset 0 -1
1) "ALPHA"
 2) "aaaa"
 3) "alpha"
 4) "b"
 5) "c"
 6) "d"
 7) "e"
 8) "foo"
 9) "zap"
10) "zip"
redis> ZREMRANGEBYLEX myzset [alpha [omega
(integer) 6
redis> ZRANGE myzset 0 -1
1) "ALPHA"
2) "aaaa"
3) "zap"
4) "zip"

Remove all members in a sorted set between the given lexicographical range

ZREM

ZREM key member [member ...]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZREM myzset "two"
(integer) 1
redis> ZRANGE myzset 0 -1 WITHSCORES
1) "one"
2) "1"
3) "three"
4) "3"

Remove one or more members from a sorted set

ZRANK

ZRANK key member

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZRANK myzset "three"
(integer) 2
redis> ZRANK myzset "four"
(nil)

Determine the index of a member in a sorted set

ZRANGEBYSCORE

ZRANGEBYSCORE key min max [WITHSCORES] [LIMIT offset count]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZRANGEBYSCORE myzset -inf +inf
1) "one"
2) "two"
3) "three"
redis> ZRANGEBYSCORE myzset 1 2
1) "one"
2) "two"
redis> ZRANGEBYSCORE myzset (1 2
1) "two"
redis> ZRANGEBYSCORE myzset (1 (2
(empty list or set)

Return a range of members in a sorted set, by score

ZREVRANGEBYLEX

ZREVRANGEBYLEX key max min [LIMIT offset count]

#Example

redis> ZADD myzset 0 a 0 b 0 c 0 d 0 e 0 f 0 g
(integer) 7
redis> ZREVRANGEBYLEX myzset [c -
1) "c"
2) "b"
3) "a"
redis> ZREVRANGEBYLEX myzset (c -
1) "b"
2) "a"
redis> ZREVRANGEBYLEX myzset (g [aaa
1) "f"
2) "e"
3) "d"
4) "c"
5) "b"

Return a range of members in a sorted set, by lexicographical range, ordered from higher to lower strings.

ZRANGEBYLEX

ZRANGEBYLEX key min max [LIMIT offset count]

#Example

redis> ZADD myzset 0 a 0 b 0 c 0 d 0 e 0 f 0 g
(integer) 7
redis> ZRANGEBYLEX myzset - [c
1) "a"
2) "b"
3) "c"
redis> ZRANGEBYLEX myzset - (c
1) "a"
2) "b"
redis> ZRANGEBYLEX myzset [aaa (g
1) "b"
2) "c"
3) "d"
4) "e"
5) "f"

Return a range of members in a sorted set, by lexicographical range

ZRANGE

ZRANGE key start stop [WITHSCORES]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZRANGE myzset 0 -1
1) "one"
2) "two"
3) "three"
redis> ZRANGE myzset 2 3
1) "three"
redis> ZRANGE myzset -2 -1
1) "two"
2) "three"

Return a range of members in a sorted set, by index

ZPOPMIN

ZPOPMIN key [count]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZPOPMIN myzset
1) "one"
2) "1"

Remove and return members with the lowest scores in a sorted set

ZPOPMAX

ZPOPMAX key [count]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZPOPMAX myzset
1) "three"
2) "3"

Remove and return members with the highest scores in a sorted set

ZLEXCOUNT

ZLEXCOUNT key min max

#Example

redis> ZADD myzset 0 a 0 b 0 c 0 d 0 e
(integer) 5
redis> ZADD myzset 0 f 0 g
(integer) 2
redis> ZLEXCOUNT myzset - +
(integer) 7
redis> ZLEXCOUNT myzset [b [f
(integer) 5

Count the number of members in a sorted set between a given lexicographical range

ZINTERSTORE

ZINTERSTORE destination numkeys key [key ...] [WEIGHTS weight [weight ...]] [AGGREGATE SUM|MIN|MAX]

#Example

redis> ZADD zset1 1 "one"
(integer) 1
redis> ZADD zset1 2 "two"
(integer) 1
redis> ZADD zset2 1 "one"
(integer) 1
redis> ZADD zset2 2 "two"
(integer) 1
redis> ZADD zset2 3 "three"
(integer) 1
redis> ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3
(integer) 2
redis> ZRANGE out 0 -1 WITHSCORES
1) "one"
2) "5"
3) "two"
4) "10"

Intersect multiple sorted sets and store the resulting sorted set in a new key

ZINTER

ZINTER numkeys key [key ...] [WEIGHTS weight [weight ...]] [AGGREGATE SUM|MIN|MAX] [WITHSCORES]

#Example

redis> ZADD zset1 1 "one"
(integer) 1
redis> ZADD zset1 2 "two"
(integer) 1
redis> ZADD zset2 1 "one"
(integer) 1
redis> ZADD zset2 2 "two"
(integer) 1
redis> ZADD zset2 3 "three"
(integer) 1
redis> ZINTER 2 zset1 zset2
1) "one"
2) "two"
redis> ZINTER 2 zset1 zset2 WITHSCORES
1) "one"
2) "2"
3) "two"
4) "4"

Intersect multiple sorted sets

ZINCRBY

ZINCRBY key increment member

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZINCRBY myzset 2 "one"
"3"
redis> ZRANGE myzset 0 -1 WITHSCORES
1) "two"
2) "2"
3) "one"
4) "3"

Increment the score of a member in a sorted set

ZDIFFSTORE

ZDIFFSTORE destination numkeys key [key ...]

#Example

redis> ZADD zset1 1 "one"
(integer) 1
redis> ZADD zset1 2 "two"
(integer) 1
redis> ZADD zset1 3 "three"
(integer) 1
redis> ZADD zset2 1 "one"
(integer) 1
redis> ZADD zset2 2 "two"
(integer) 1
redis> ZDIFFSTORE out 2 zset1 zset2
(integer) 1
redis> ZRANGE out 0 -1 WITHSCORES
1) "three"
2) "3"

Subtract multiple sorted sets and store the resulting sorted set in a new key

ZDIFF

ZDIFF numkeys key [key ...] [WITHSCORES]

#Example

redis> ZADD zset1 1 "one"
(integer) 1
redis> ZADD zset1 2 "two"
(integer) 1
redis> ZADD zset1 3 "three"
(integer) 1
redis> ZADD zset2 1 "one"
(integer) 1
redis> ZADD zset2 2 "two"
(integer) 1
redis> ZDIFF 2 zset1 zset2
1) "three"
redis> ZDIFF 2 zset1 zset2 WITHSCORES
1) "three"
2) "3"

Subtract multiple sorted sets

ZCOUNT

ZCOUNT key min max

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZADD myzset 3 "three"
(integer) 1
redis> ZCOUNT myzset -inf +inf
(integer) 3
redis> ZCOUNT myzset (1 3
(integer) 2

Count the members in a sorted set with scores within the given values

ZSCORE

ZSCORE key member

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZSCORE myzset "one"
"1"

Get the score associated with the given member in a sorted set

ZCARD

ZCARD key

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 2 "two"
(integer) 1
redis> ZCARD myzset
(integer) 2

Get the number of members in a sorted set

ZADD

ZADD key [NX|XX] [GT|LT] [CH] [INCR] score member [score member ...]

#Example

redis> ZADD myzset 1 "one"
(integer) 1
redis> ZADD myzset 1 "uno"
(integer) 1
redis> ZADD myzset 2 "two" 3 "three"
(integer) 2
redis> ZRANGE myzset 0 -1 WITHSCORES
1) "one"
2) "1"
3) "uno"
4) "1"
5) "two"
6) "2"
7) "three"
8) "3"

Add one or more members to a sorted set, or update its score if it already exists

BZPOPMAX

BZPOPMAX key [key ...] timeout

#Example

redis> DEL zset1 zset2
(integer) 0
redis> ZADD zset1 0 a 1 b 2 c
(integer) 3
redis> BZPOPMAX zset1 zset2 0
1) "zset1"
2) "c"
3) "2"

Remove and return the member with the highest score from one or more sorted sets, or block until one is available

BZPOPMIN

BZPOPMIN key [key ...] timeout

#Example

redis> DEL zset1 zset2
(integer) 0
redis> ZADD zset1 0 a 1 b 2 c
(integer) 3
redis> BZPOPMIN zset1 zset2 0
1) "zset1"
2) "a"
3) "0"

Remove and return the member with the lowest score from one or more sorted sets, or block until one is available

Redis Hash command

HVALS

HVALS key

#Example

redis> HSET myhash field1 "Hello"
(integer) 1
redis> HSET myhash field2 "World"
(integer) 1
redis> HVALS myhash
1) "Hello"
2) "World"

Get all the values in a hash

HSTRLEN

HSTRLEN key field

#Example

redis> HMSET myhash f1 HelloWorld f2 99 f3 -256
"OK"
redis> HSTRLEN myhash f1
(integer) 10
redis> HSTRLEN myhash f2
(integer) 2
redis> HSTRLEN myhash f3
(integer) 4

Get the length of the value of a hash field

HSETNX

HSETNX key field value

#Example

redis> HSETNX myhash field "Hello"
(integer) 1
redis> HSETNX myhash field "World"
(integer) 0
redis> HGET myhash field
"Hello"

Set the value of a hash field, only if the field does not exist

HSET

HSET key field value [field value ...]

#Example

redis> HSET myhash field1 "Hello"
(integer) 1
redis> HGET myhash field1
"Hello"

Set the string value of a hash field

HMSET

HMSET key field value [field value ...]

#Example

redis> HMSET myhash field1 "Hello" field2 "World"
"OK"
redis> HGET myhash field1
"Hello"
redis> HGET myhash field2
"World"

Set multiple hash fields to multiple values

HMGET

HMGET key field [field ...]

#Example

redis> HSET myhash field1 "Hello"
(integer) 1
redis> HSET myhash field2 "World"
(integer) 1
redis> HMGET myhash field1 field2 nofield
1) "Hello"
2) "World"
3) (nil)

Get the values of all the given hash fields

HLEN

HLEN key

#Example

redis> HSET myhash field1 "Hello"
(integer) 1
redis> HSET myhash field2 "World"
(integer) 1
redis> HLEN myhash
(integer) 2

Get the number of fields in a hash

HKEYS

HKEYS key

#Example

redis> HSET myhash field1 "Hello"
(integer) 1
redis> HSET myhash field2 "World"
(integer) 1
redis> HKEYS myhash
1) "field1"
2) "field2"

Get all the fields in a hash

HINCRBYFLOAT

HINCRBYFLOAT key field increment

#Example

redis> HSET mykey field 10.50
(integer) 1
redis> HINCRBYFLOAT mykey field 0.1
"10.6"
redis> HINCRBYFLOAT mykey field -5
"5.6"
redis> HSET mykey field 5.0e3
(integer) 0
redis> HINCRBYFLOAT mykey field 2.0e2
"5200"

Increment the float value of a hash field by the given amount

HINCRBY

HINCRBY key field increment

#Example

redis> HSET myhash field 5
(integer) 1
redis> HINCRBY myhash field 1
(integer) 6
redis> HINCRBY myhash field -1
(integer) 5
redis> HINCRBY myhash field -10
(integer) -5

Increment the integer value of a hash field by the given number

HGETALL

HGETALL key

#Example

redis> HSET myhash field1 "Hello"
(integer) 1
redis> HSET myhash field2 "World"
(integer) 1
redis> HGETALL myhash
1) "field1"
2) "Hello"
3) "field2"
4) "World"

Get all the fields and values in a hash

HGET

HGET key field

#Example

redis> HSET myhash field1 "foo"
(integer) 1
redis> HGET myhash field1
"foo"
redis> HGET myhash field2
(nil)

Get the value of a hash field

HEXISTS

HEXISTS key field

#Example

redis> HSET myhash field1 "foo"
(integer) 1
redis> HEXISTS myhash field1
(integer) 1
redis> HEXISTS myhash field2
(integer) 0

Determine if a hash field exists

HDEL

HDEL key field [field ...]

#Example

redis> HSET myhash field1 "foo"
(integer) 1
redis> HDEL myhash field1
(integer) 1
redis> HDEL myhash field2
(integer) 0

Delete one or more hash fields

1
Miscellaneous
2
Redis Stream command
3
Redis Connection command
4
Redis Generic command
5
Redis Server command
6
Redis Hyperloglog command
7
Redis Geo command
8
Redis Sorted set command
9
Redis Hash command