---
title: "Redis Commands Cheatsheet | FindUtils"
description: "Strings, hashes, lists, sets, sorted sets, pub/sub, streams, and transactions"
url: https://findutils.com/cheatsheets/redis-commands/
---

# Redis Commands Cheatsheet

Strings, hashes, lists, sets, sorted sets, pub/sub, streams, and transactions 75 commands in 9 sections, filed under [Programming](https://findutils.com/cheatsheets/programming/).

## Connection & Server

- `redis-cli`: Connect to local Redis instance
- `redis-cli -h host -p 6379`: Connect to remote Redis
- `redis-cli -a password`: Connect with authentication
- `AUTH password`: Authenticate after connecting
- `PING`: Test connection (returns PONG)
- `SELECT 1`: Switch to database 1 (0-15)
- `INFO`: Show server info and statistics
- `INFO memory`: Show memory usage details
- `DBSIZE`: Count keys in current database
- `FLUSHDB`: Delete all keys in current database
- `FLUSHALL`: Delete all keys in all databases

## String Operations

- `SET key value`: Set a string value
- `GET key`: Get a string value
- `SET key value EX 3600`: Set with expiry (seconds)
- `SET key value NX`: Set only if key does not exist
- `MSET key1 val1 key2 val2`: Set multiple keys at once
- `MGET key1 key2 key3`: Get multiple values at once
- `INCR counter`: Increment integer value by 1
- `INCRBY counter 5`: Increment integer by N
- `DECR counter`: Decrement integer value by 1
- `APPEND key " more"`: Append string to existing value
- `STRLEN key`: Get length of string value

## Key Management

- `KEYS pattern*`: Find keys matching pattern (slow)
- `SCAN 0 MATCH pattern* COUNT 100`: Iterate keys safely (production-safe)
- `EXISTS key`: Check if key exists (returns 0/1)
- `DEL key`: Delete a key
- `UNLINK key`: Async delete (non-blocking)
- `TYPE key`: Get the type of a key
- `RENAME key newkey`: Rename a key
- `EXPIRE key 300`: Set TTL in seconds
- `PEXPIRE key 5000`: Set TTL in milliseconds
- `TTL key`: Get remaining TTL in seconds
- `PERSIST key`: Remove expiry from key

## Hash Operations

- `HSET user:1 name "Alice" age 30`: Set hash fields
- `HGET user:1 name`: Get a single hash field
- `HGETALL user:1`: Get all fields and values
- `HMGET user:1 name age`: Get multiple hash fields
- `HDEL user:1 age`: Delete a hash field
- `HEXISTS user:1 email`: Check if hash field exists
- `HKEYS user:1`: List all hash field names
- `HVALS user:1`: List all hash field values
- `HINCRBY user:1 age 1`: Increment hash field value

## List Operations

- `LPUSH queue item1 item2`: Push to head of list
- `RPUSH queue item1 item2`: Push to tail of list
- `LPOP queue`: Pop from head of list
- `RPOP queue`: Pop from tail of list
- `LRANGE queue 0 -1`: Get all items in list
- `LRANGE queue 0 9`: Get first 10 items
- `LLEN queue`: Get list length
- `LINDEX queue 0`: Get item at index
- `BLPOP queue 30`: Blocking pop (wait up to 30s)

## Set & Sorted Set

- `SADD tags "redis" "database"`: Add members to a set
- `SMEMBERS tags`: Get all members of a set
- `SISMEMBER tags "redis"`: Check if member exists in set
- `SCARD tags`: Get set cardinality (count)
- `SINTER set1 set2`: Intersection of two sets
- `SUNION set1 set2`: Union of two sets
- `ZADD leaderboard 100 "alice"`: Add member with score to sorted set
- `ZRANGE leaderboard 0 9 REV WITHSCORES`: Get top 10 with scores
- `ZRANK leaderboard "alice"`: Get rank of member (0-based)
- `ZSCORE leaderboard "alice"`: Get score of member

## Pub/Sub & Streams

- `SUBSCRIBE channel`: Subscribe to a channel
- `PUBLISH channel "message"`: Publish message to channel
- `PSUBSCRIBE pattern*`: Subscribe to channels matching pattern
- `XADD stream * field value`: Add entry to stream
- `XREAD COUNT 10 STREAMS stream 0`: Read from stream
- `XLEN stream`: Get stream length

## Transactions & Scripting

- `MULTI`: Start a transaction
- `EXEC`: Execute all queued commands
- `DISCARD`: Discard queued commands
- `WATCH key`: Watch key for optimistic locking
- `EVAL "return redis.call('GET', KEYS[1])" 1 mykey`: Execute Lua script
- `BGSAVE`: Trigger background save to disk
- `BGREWRITEAOF`: Trigger AOF rewrite

## Sources

- `https://redis.io/docs/latest/commands/`: Redis command reference: data types, streams, transactions, and command availability.

## Related

- Cheatsheet: [Barcode Formats](https://findutils.com/cheatsheets/barcode-formats/)
- Cheatsheet: [JavaScript ES6+](https://findutils.com/cheatsheets/javascript-es6/)
- Cheatsheet: [Python Essentials](https://findutils.com/cheatsheets/python-essentials/)
- Guide: [Convert SQL INSERT Statements to JSON With the Right Types](https://findutils.com/guides/sql-to-json/)
- Guide: [Convert JSON to SQL INSERT Statements Without Losing Types](https://findutils.com/guides/json-to-sql/)
- Guide: [Convert a SQL Dump to CSV Without Restoring a Database](https://findutils.com/guides/sql-to-csv/)