Redis Data Types Cheat Sheet

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High-value Redis commands for lists, sets, hashes, and sorted sets used in queues, objects, tags, and leaderboards.

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Lists

Queues, stacks, blocking pops, and range access.

Push to head of list

Insert one or more elements at the head.

↗#

bashANYredislistqueue

bash

LPUSH jobs pending-1 pending-2

Push to tail of list

Insert one or more elements at the tail.

↗#

bashANYredislistqueue

bash

RPUSH jobs pending-1 pending-2

Pop from head

Remove and return the first element.

↗#

bashANYredislistpop

bash

LPOP jobs

Pop from tail

Remove and return the last element.

↗#

bashANYredislistpop

bash

RPOP jobs

Blocking pop from one or more lists

Wait up to 30 seconds for a new element.

↗#

bashANYredislistblocking

bash

BLPOP jobs urgent:jobs 30

Blocking pop from tail

Block until an element is available at the tail.

↗#

bashANYredislistblocking

bash

BRPOP jobs 30

List length

Return the number of elements in a list.

↗#

bashANYredislistlength

bash

LLEN jobs

Read a slice of a list

Get a range of list elements.

↗#

bashANYredislistread

bash

LRANGE jobs 0 9

Read one element by index

Return a list element by zero-based index.

↗#

bashANYredislistread

bash

LINDEX jobs 0

Overwrite a list element

Replace an element at a specific index.

↗#

bashANYredislistupdate

bash

LSET jobs 0 urgent-1

Trim a list to a window

Keep only a selected range of elements.

↗#

bashANYredislisttrim

bash

LTRIM jobs 0 99

Remove matching elements

Remove occurrences of a value.

↗#

bashANYredislistdelete

bash

LREM jobs 0 duplicate-job

Move from one list to another

Atomically move an item between lists.

↗#

bashANYredislistworkflow

bash

RPOPLPUSH source processing

Move between lists with direction control

Generalized replacement for RPOPLPUSH.

↗#

bashANYredislistworkflow

bash

LMOVE source destination RIGHT LEFT

Blocking LMOVE

Block until an element can be moved between lists.

↗#

bashANYredislistblocking

bash

BLMOVE source destination RIGHT LEFT 30

Find index of a list element

Find the first index of a matching element.

↗#

bashANYredislistsearch

bash

LPOS jobs urgent-1

Sets

Membership, uniqueness, intersections, and set algebra.

Add members to a set

Insert unique set members.

↗#

bashANYredissetsadd

bash

SADD tags:post:1 redis cache database

Remove members from a set

Remove members from a set.

↗#

bashANYredissetdelete

bash

SREM tags:post:1 cache

List all members

Return every member of a set.

↗#

bashANYredissetread

bash

SMEMBERS tags:post:1

Get set size

Return the number of unique members.

↗#

bashANYredissetcount

bash

SCARD tags:post:1

Check membership

Return whether a member exists in the set.

↗#

bashANYredissetmembership

bash

SISMEMBER tags:post:1 redis

Check multiple memberships

Test several possible members at once.

↗#

bashANYredissetmembership

bash

SMISMEMBER tags:post:1 redis cache nosql

Pop random members

Remove and return random set members.

↗#

bashANYredissetrandom

bash

SPOP queue:set 2

Read random members

Return random members without removing them.

↗#

bashANYredissetrandom

bash

SRANDMEMBER queue:set 3

Move member between sets

Move a member atomically.

↗#

bashANYredissetworkflow

bash

SMOVE online-users offline-users user:1

Union sets

Return members from either set.

↗#

bashANYredissetunion

bash

SUNION set:a set:b

Intersect sets

Return members common to all sets.

↗#

bashANYredissetintersection

bash

SINTER set:a set:b

Difference of sets

Return members in the first set but not others.

↗#

bashANYredissetdifference

bash

SDIFF set:a set:b

Store union result

Write the union into a destination set.

↗#

bashANYredissetunion

bash

SUNIONSTORE result:set set:a set:b

Store intersection result

Write the intersection into a destination set.

↗#

bashANYredissetintersection

bash

SINTERSTORE result:set set:a set:b

Store difference result

Write the difference into a destination set.

↗#

bashANYredissetdifference

bash

SDIFFSTORE result:set set:a set:b

Incrementally scan a set

Cursor-based iteration over large sets.

↗#

bashANYredissetscan

bash

SSCAN tags:post:1 0 MATCH re* COUNT 100

Hashes

Field/value structures for objects and sparse records.

Set one or more hash fields

Create or update hash fields.

↗#

bashANYredishashobject

bash

HSET user:1 name Alice email alice@example.com

Get one hash field

Read one field from a hash.

↗#

bashANYredishashread

bash

HGET user:1 name

Get multiple fields

Read several fields in one call.

↗#

bashANYredishashread

bash

HMGET user:1 name email

Get all fields and values

Read the full hash.

↗#

bashANYredishashread

bash

HGETALL user:1

List field names

Return all field names in a hash.

↗#

bashANYredishashread

bash

HKEYS user:1

List field values

Return all values in a hash.

↗#

bashANYredishashread

bash

HVALS user:1

Count fields

Return how many fields exist.

↗#

bashANYredishashcount

bash

HLEN user:1

Check whether a field exists

Return 1 if the field exists.

↗#

bashANYredishashexists

bash

HEXISTS user:1 email

Delete fields

Delete one or more fields.

↗#

bashANYredishashdelete

bash

HDEL user:1 email phone

Increment integer field

Atomically increment a numeric field.

↗#

bashANYredishashcounter

bash

HINCRBY counters:api hits 1

Increment float field

Atomically increment a float field.

↗#

bashANYredishashcounter

bash

HINCRBYFLOAT account:1 balance 9.99

Set a field only if absent

Write a field only if it does not exist.

↗#

bashANYredishashconditional

bash

HSETNX user:1 created_at 2026-03-06

Get random fields

Sample random fields from a hash.

↗#

bashANYredishashrandom

bash

HRANDFIELD user:1 2 WITHVALUES

Incrementally scan a hash

Cursor-based iteration over hash fields.

↗#

bashANYredishashscan

bash

HSCAN user:1 0 MATCH meta:* COUNT 100

Get field value length

Return the string length of a field value.

↗#

bashANYredishashinspect

bash

HSTRLEN user:1 name

Sorted sets

Ranked data, leaderboards, and range queries by score or rank.

Add scored members

Insert or update sorted-set scores.

↗#

bashANYrediszsetleaderboard

bash

ZADD leaderboard 100 alice 95 bob

Get a member score

Read a member's numeric score.

↗#

bashANYrediszsetscore

bash

ZSCORE leaderboard alice

Increment member score

Add to a member's score.

↗#

bashANYrediszsetscore

bash

ZINCRBY leaderboard 10 alice

Read by rank

Get members by ascending rank.

↗#

bashANYrediszsetrange

bash

ZRANGE leaderboard 0 9 WITHSCORES

Read highest-ranked members

Get members by descending rank.

↗#

bashANYrediszsetleaderboard

bash

ZREVRANGE leaderboard 0 9 WITHSCORES

Read by score interval

Get members in a score range.

↗#

bashANYrediszsetrange

bash

ZRANGEBYSCORE leaderboard 90 100 WITHSCORES

Read by score descending

Get members by descending score interval.

↗#

bashANYrediszsetrange

bash

ZREVRANGEBYSCORE leaderboard +inf 90 WITHSCORES

Find ascending rank

Return zero-based ascending rank.

↗#

bashANYrediszsetrank

bash

ZRANK leaderboard alice

Find descending rank

Return zero-based descending rank.

↗#

bashANYrediszsetrank

bash

ZREVRANK leaderboard alice

Remove members

Delete members from a sorted set.

↗#

bashANYrediszsetdelete

bash

ZREM leaderboard bob

Trim by rank

Remove all but top 100 members.

↗#

bashANYrediszsettrim

bash

ZREMRANGEBYRANK leaderboard 0 -101

Trim by score

Remove low-scoring members.

↗#

bashANYrediszsettrim

bash

ZREMRANGEBYSCORE leaderboard -inf 49

Count members in score range

Count how many members fall within a score range.

↗#

bashANYrediszsetcount

bash

ZCOUNT leaderboard 80 100

Count all members

Return sorted-set cardinality.

↗#

bashANYrediszsetcount

bash

ZCARD leaderboard

Store union of sorted sets

Combine multiple sorted sets into a destination key.

↗#

bashANYrediszsetunion

bash

ZUNIONSTORE combined 2 board:daily board:weekly

Store intersection of sorted sets

Intersect sorted sets into a destination key.

↗#

bashANYrediszsetintersection

bash

ZINTERSTORE common 2 board:a board:b

Incrementally scan a sorted set

Cursor-based scan over zset members and scores.

↗#

bashANYrediszsetscan

bash

ZSCAN leaderboard 0 MATCH a* COUNT 100

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