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Redis-Commands.md

#Redis Commands

##Generic Commands

  • DEL key [key …] - Delete a key
  • DUMP key - Return a serialized version of value stored at specified key
  • EXISTS key - Determine if a key exists
  • EXPIRE key seconds - Set a key's time to live in seconds
  • EXPIREAT key timestamp - Set expiration for a key as a UNIX timestamp
  • KEYS pattern - Find all keys matching given pattern
  • MIGRATE host port key destination-db timeout - Atomically transfer a key from a Redis instance to another one
  • MOVE key db - Move a key to another database
  • OBJECT subcommand [arguments [arguments …]] - Inspect internals of Redis objects
  • PERSIST key - Remove expiration from a key
  • PEXPIRE key milliseconds - Set a key's time to live in milliseconds
  • PEXPIREAT key milliseconds-timestamp - Set expiration for a key as a UNIX timestamp specified in milliseconds
  • PTTL key - Get time to live for a key in milliseconds
  • RANDOMKEY - Return a random key from keyspace
  • RENAME key newkey - Rename a key
  • RENAMENX key newkey - Rename a key, only if new key does not exist
  • RESTORE key ttl serialized-value - Create a key using provided serialized value, previously obtained using DUMP
  • SORT key [BY pattern] [LIMIT offset count] [GET pattern [GET pattern ...]] [ASC|DESC] [ALPHA] [STORE destination] - Sort elements in a list, set or sorted set
  • TTL key - Get time to live for a key
  • TYPE key - Determine type stored at key

##String Commands

  • APPEND key value - Append a value to a key
  • BITCOUNT key [start] [end] - Count set bits in a string
  • BITOP operation destkey key [key …] - Perform bitwise operations between strings
  • DECR key - Decrement integer value of a key by one
  • DECRBY key decrement - Decrement integer value of a key by given number
  • GET key - Get value of a key
  • GETBIT key offset - Returns bit value at offset in string value stored at key
  • GETRANGE key start end - Get a substring of string stored at a key
  • GETSET key value - Set string value of a key && return its old value
  • INCR key - Increment integer value of a key by one
  • INCRBY key increment - Increment integer value of a key by given amount
  • INCRBYFLOAT key increment - Increment float value of a key by given amount
  • MGET key [key …] - Get values of all given keys
  • MSET key value [key value …] - Set multiple keys to multiple values 1.0.1
  • MSETNX key value [key value …] - Set multiple keys to multiple values, only if none of keys exist
  • PSETEX key milliseconds value - Set value && expiration in milliseconds of a key
  • SET key value - Set string value of a key
  • SETBIT key offset value - Sets or clears bit at offset in string value stored at key
  • SETEX key seconds value - Set value && expiration of a key
  • SETNX key value - Set value of a key, only if key does not exist
  • SETRANGE key offset value - Overwrite part of a string at key starting at specified offset
  • STRLEN key - Get length of value stored in a key

##List Commands

  • BLPOP key [key ...] timeout - Remove && get first element in a list, or block until one is available
  • BRPOP key [key ...] timeout - Remove && get last element in a list, or block until one is available
  • BRPOPLPUSH source destination timeout - Pop a value from a list, push it to another list && return it; or block until one is available
  • LINDEX key index - Get an element from a list by its index
  • LINSERT key BEFORE|AFTER pivot value - Insert an element before or after another element in a list
  • LLEN key - Get length of a list
  • LPOP key - Remove && get first element in a list
  • LPUSH key value [value …] - Prepend one or multiple values to a list
  • LPUSHX key value - Prepend a value to a list, only if list exists
  • LRANGE key start stop - Get a range of elements from a list
  • LREM key count value - Remove elements from a list
  • LSET key index value - Set value of an element in a list by its index
  • LTRIM key start stop - Trim a list to specified range
  • RPOP key - Remove && get last element in a list
  • RPOPLPUSH source destination - Remove last element in a list, append it to another list && return it
  • RPUSH key value [value …] - Append one or multiple values to a list
  • RPUSHX key value - Append a value to a list, only if list exists

##Set Commands

  • SADD key member [member ...] - Add one or more members to a set
  • SCARD key - Get number of members in a set
  • SDIFF key [key ...] - Subtract multiple sets
  • SDIFFSTORE destination key [key ...] - Subtract multiple sets && store resulting set in a key
  • SINTER key [key ...] - Intersect multiple sets
  • SINTERSTORE destination key [key ...] - Intersect multiple sets && store resulting set in a key
  • SISMEMBER key member - Determine if a given value is a member of a set
  • SMEMBERS key - Get all members in a set
  • SMOVE source destination member - Move a member from one set to another
  • SPOP key - Remove && return a random member from a set
  • SRANDMEMBER key [count] - Get one or multiple random members from a set
  • SREM key member [member ...] - Remove one or more members from a set
  • SUNION key [key ...] - Add multiple sets
  • SUNIONSTORE destination key [key ...] - Add multiple sets && store resulting set in a key

##Sorted-Set Commands

  • ZADD key score member [score] [member] - Add one or more members to a sorted set, or update its score if it already exists
  • ZCARD key - Get number of members in a sorted set
  • ZCOUNT key min max - Count members in a sorted set with scores within given values
  • ZINCRBY key increment member - Increment score of a member in a sorted set
  • ZINTERSTORE destination numkeys key [key ...] [WEIGHTS weight] [AGGREGATE SUM|MIN|MAX] - Intersect multiple sorted sets && store resulting sorted set in a new key
  • ZRANGE key start stop [WITHSCORES] - Return a range of members in a sorted set, by index
  • ZRANGEBYSCORE key min max [WITHSCORES] [LIMIT offset count] - Return a range of members in a sorted set, by score
  • ZRANK key member - Determine index of a member in a sorted set
  • ZREM key member [member ...] - Remove one or more members from a sorted set
  • ZREMRANGEBYRANK key start stop - Remove all members in a sorted set within given indexes
  • ZREMRANGEBYSCORE key min max - Remove all members in a sorted set within given scores
  • ZREVRANGE key start stop [WITHSCORES] - Return a range of members in a sorted set, by index, with scores ordered from high to low
  • ZREVRANGEBYSCORE key max min [WITHSCORES] [LIMIT offset count] - Return a range of members in a sorted set, by score, with scores ordered from high to low
  • ZREVRANK key member - Determine index of a member in a sorted set, with scores ordered from high to low
  • ZSCORE key member - Get score associated with given member in a sorted set
  • ZUNIONSTORE destination numkeys key [key ...] [WEIGHTS weight] [AGGREGATE SUM|MIN|MAX] - Add multiple sorted sets && store resulting sorted set in a new key

##Hash Commands

  • HDEL key field [field ...] - Delete one or more hash fields
  • HEXISTS key field - Determine if a hash field exists
  • HGET key field - Get value of a hash field
  • HGETALL key - Get all fields && values in a hash
  • HINCRBY key field increment - Increment integer value of a hash field by given number
  • HINCRBYFLOAT key field increment - Increment float value of a hash field by given amount
  • HKEYS key - Get all fields in a hash
  • HLEN key - Get number of fields in a hash
  • HMGET key field [field ...] - Get values of all given hash fields
  • HMSET key field value [field value ...] - Set multiple hash fields to multiple values
  • HSET key field value - Set string value of a hash field
  • HSETNX key field value - Set value of a hash field, only if field does not exist
  • HVALS key - Get all values in a hash

##PubSub Commands

  • PSUBSCRIBE pattern [pattern ...] - Listen for messages published to channels matching given patterns
  • PUBLISH channel message - Post a message to a channel
  • PUNSUBSCRIBE [pattern [pattern ...]] - Stop listening for messages posted to channels matching given patterns
  • SUBSCRIBE channel [channel ...] - Listen for messages published to given channels
  • UNSUBSCRIBE [channel [channel ...]] - Stop listening for messages posted to given channels

##Transaction Commands

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

##Connection Commands

  • AUTH password - Authenticate to server
  • ECHO message - Echo given string
  • PING - Ping server
  • QUIT - Close connection
  • SELECT index - Change selected database for current connection

##Server Commands

  • BGREWRITEAOF - Asynchronously rewrite append-only file
  • BGSAVE - Asynchronously save dataset to disk
  • CLIENT KILL ip:port - Kill connection of a client
  • CLIENT LIST - Get list of client connections
  • CONFIG GET parameter - Get value of a configuration parameter
  • CONFIG RESETSTAT - Reset stats returned by INFO
  • CONFIG SET parameter value - Set a configuration parameter to given value
  • DBSIZE - Return number of keys in selected database
  • DEBUG OBJECT key - Get debugging information about a key
  • DEBUG SEGFAULT - Make server crash
  • FLUSHALL - Remove all keys from all databases
  • FLUSHDB - Remove all keys from current database
  • INFO - Get information && statistics about server
  • LASTSAVE - Get UNIX time stamp of last successful save to disk
  • MONITOR - Listen for all requests received by server in real time
  • SAVE - Synchronously save dataset to disk
  • SHUTDOWN [NOSAVE] [SAVE] - Synchronously save dataset to disk && then shut down server
  • SLAVEOF host port - Make server a slave of another instance, or promote it as master
  • SLOWLOG subcommand [argument] - Manages Redis slow queries log
  • SYNC - Internal command used for replication
  • TIME - Return current server time

##Scripting Commands

  • EVAL script numkeys key [key ...] arg [arg ...] - Execute a Lua script server side
  • EVALSHA sha1 numkeys key [key ...] arg [arg ...] - Execute a Lua script server side
  • SCRIPT EXISTS script [script ...] - Check existence of scripts in script cache
  • SCRIPT FLUSH - Remove all scripts from script cache
  • SCRIPT KILL - Kill script currently in execution
  • SCRIPT LOAD script - Load specified Lua script into script cache
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