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---
redis: |-
Redis Command Reference
http://code.google.com/p/redis/wiki/CommandReference
##Connection handling
QUIT close the connection
AUTH simple password authentication if enabled
##All Values
EXISTS
key test if a key exists
DEL
key delete a key
TYPE
key return the type of the value stored at key
KEYS
pattern return all the keys matching a given pattern
RANDOMKEY
return a random key from the key space
RENAME
oldname newname rename the old key in the new one, destroing the newname key if it already exists
RENAMENX
oldname newname rename the old key in the new one, if the newname key does not already exist
DBSIZE
return the number of keys in the current db
EXPIRE
set a time to live in seconds on a key
TTL
get the time to live in seconds of a key
SELECT
index Select the DB having the specified index
MOVE
key dbindex Move the key from the currently selected DB to the DB having as index dbindex
FLUSHDB
Remove all the keys of the currently selected DB
FLUSHALL
Remove all the keys from all the databases
##Strings
SET
key value set a key to a string value
GET
key return the string value of the key
GETSET
key value set a key to a string returning the old value of the key
MGET
key1 key2 ... keyN multi-get, return the strings values of the keys
SETNX
key value set a key to a string value if the key does not exist
SETEX
key time value Set+Expire combo command
MSET
key1 value1 key2 value2 ... keyN valueN set a multiple keys to multiple values in a single atomic operation
MSETNX
key1 value1 key2 value2 ... keyN valueN set a multiple keys to multiple values in a single atomic operation if none of the keys already exist
INCR
key increment the integer value of key
INCRBY
key integer increment the integer value of key by integer
DECR
key decrement the integer value of key
DECRBY
key integer decrement the integer value of key by integer
##Lists
RPUSH
key value Append an element to the tail of the List value at key
LPUSH
key value Append an element to the head of the List value at key
LLEN
key Return the length of the List value at key
LRANGE
key start end Return a range of elements from the List at key
LTRIM
key start end Trim the list at key to the specified range of elements
LINDEX
key index Return the element at index position from the List at key
LSET
key index value Set a new value as the element at index position of the List at key
LREM
key count value Remove the first-N, last-N, or all the elements matching value from the List at key
LPOP
key Return and remove (atomically) the first element of the List at key
RPOP
key Return and remove (atomically) the last element of the List at key
BLPOP
key1 key2 ... keyN timeout Blocking LPOP
BRPOP
key1 key2 ... keyN timeout Blocking RPOP
RPOPLPUSH
srckey dstkey Return and remove (atomically) the last element of the source List stored at _srckey_ and push the same element to the destination List stored at _dstkey_
##Sets
SADD
key member Add the specified member to the Set value at key
SREM
key member Remove the specified member from the Set value at key
SPOP
key Remove and return (pop) a random element from the Set value at key
SMOVE
srckey dstkey member Move the specified member from one Set to another atomically
SCARD
key Return the number of elements (the cardinality) of the Set at key
SISMEMBER
key member Test if the specified value is a member of the Set at key
SINTER
key1 key2 ... keyN Return the intersection between the Sets stored at key1, key2, ..., keyN
SINTERSTORE
dstkey key1 key2 ... keyN Compute the intersection between the Sets stored at key1, key2, ..., keyN, and store the resulting Set at dstkey
SUNION
key1 key2 ... keyN Return the union between the Sets stored at key1, key2, ..., keyN
SUNIONSTORE
dstkey key1 key2 ... keyN Compute the union between the Sets stored at key1, key2, ..., keyN, and store the resulting Set at dstkey
SDIFF
key1 key2 ... keyN Return the difference between the Set stored at key1 and all the Sets key2, ..., keyN
SDIFFSTORE
dstkey key1 key2 ... keyN Compute the difference between the Set key1 and all the Sets key2, ..., keyN, and store the resulting Set at dstkey
SMEMBERS
key Return all the members of the Set value at key
SRANDMEMBER
key Return a random member of the Set value at key
##Sorted sets (zsets, Redis version >= 1.1)
ZADD
key score member Add the specified member to the Sorted Set value at key or update the score if it already exist
ZREM
key member Remove the specified member from the Sorted Set value at key
ZINCRBY
key increment member If the member already exists increment its score by _increment_, otherwise add the member setting _increment_ as score
ZRANK
key member Return the rank (or index) or _member_ in the sorted set at _key_, with scores being ordered from low to high
ZREVRANK
key member Return the rank (or index) or _member_ in the sorted set at _key_, with scores being ordered from high to low
ZRANGE
key start end Return a range of elements from the sorted set at key
ZREVRANGE
key start end Return a range of elements from the sorted set at key, exactly like ZRANGE, but the sorted set is ordered in traversed in reverse order, from the greatest to the smallest score
ZRANGEBYSCORE
key min max Return all the elements with score >= min and score <= max (a range query) from the sorted set
ZCARD
key Return the cardinality (number of elements) of the sorted set at key
ZSCORE
key element Return the score associated with the specified element of the sorted set at key
ZREMRANGEBYRANK
key min max Remove all the elements with rank >= min and rank <= max from the sorted set
ZREMRANGEBYSCORE
key min max Remove all the elements with score >= min and score <= max from the sorted set
ZUNION/ZINTER
dstkey N key1 ... keyN WEIGHTS w1 ... wN AGGREGATE SUM|MIN|MAX Perform a union or intersection over a number of sorted sets with optional weight and aggregate
##Hashes
HSET
key field value Set the hash field to the specified value. Creates the hash if needed.
HGET
key field Retrieve the value of the specified hash field.
HMSET
key field1 value1 ... fieldN valueN Set the hash fields to their respective values.
HINCRBY
key field integer Increment the integer value of the hash at _key_ on _field_ with _integer_.
HEXISTS
key field Test for existence of a specified field in a hash
HDEL
key field Remove the specified field from a hash
HLEN
key Return the number of items in a hash.
HKEYS
key Return all the fields in a hash.
HVALS
key Return all the values in a hash.
HGETALL
key Return all the fields and associated values in a hash.
##Sorting
SORT
key BY pattern LIMIT start end GET pattern ASC|DESC ALPHA Sort a Set or a List accordingly to the specified parameters
##Transactions
MULTI/EXEC/DISCARD
Redis atomic transactions
##Publish/Subscribe
SUBSCRIBE/UNSUBSCRIBE/PUBLISH
Redis Public/Subscribe messaging paradigm implementation
##Persistence control
SAVE
Synchronously save the DB on disk
BGSAVE
Asynchronously save the DB on disk
LASTSAVE
Return the UNIX time stamp of the last successfully saving of the dataset on disk
SHUTDOWN
Synchronously save the DB on disk, then shutdown the server
BGREWRITEAOF
Rewrite the append only file in background when it gets too big
##Remote server control
INFO
Provide information and statistics about the server
MONITOR
Dump all the received requests in real time
SLAVEOF
Change the replication settings