Redis API Usage Notes

List Related:

Lpop key: Delete and get a list header element

Rpop key: Deletes and obtains an element of the list tail

Blpop key [key ...] timeout: delete and get the list header an element, if not on the block

Brpop key [key ...] timeout: delete and get an element of the list tail, if no block

Lpush key value: Expands an element in the list header

Rpush key value: extends an element at the tail of the list

Lpushx Key value: If list exists, expand an element in the list header

Rpushx Key value: If list exists, extend an element at the end of the list

LINDEX Key index: Gets an element of list by index

Llen key: Gets the length of the list

Lrange key start stop: Gets the list of elements within the specified range

Lrem Key Count value: Remove elements from list

LSET Key Index Value: Sets the values of the elements of the list index to index

LTRIM key start stop: Crop list, preserving a range of elements

Rpoplpush Source Destination: Deletes an element at the end of the current list and extends it to the tail of another list

Brpoplpush source destination timeout: pops up a list element and inserts it into another list, then returns if the previous list is empty block

SORT key [by pattern] [LIMIT offset count] [get pattern [get pattern ...]] [asc| DESC] [ALPHA] [STORE destination]: Sort List,set, SORTED SET

Set Correlation:

Sadd Key member: Adding a member to a set

Srem Key member: Remove a member from set

Sdiff key [Key ...]: Set differential set

SINTER key [Key ...]: Set intersection

Sunion key [Key ...]: Set Seek and set

Sdiffstore destination key [key ...]: Set differential set and save result set to another collection

Sinterstore destination key [key ...]: Sets the intersection and saves the result set to another collection

Sunionstore destination key [key ...]: Sets the set and saves the result set to another collection

SCard key: Gets the total number of Set members

Sismember Key member: Determines whether a given value is a set member

SPOP key: Delete and return set any member

Srandmember key: Returns a set of any member

Smembers key: Get all members of set

Smove Source Destination Member: Move one member of a set to another set

Zset Related:

Zadd Key Score member: Add a member to Sset, or update an existing member's score

Zcard key: Total number of members getting Sset

Zcount Key min Max: Calculates the total number of members score within a given range in Sset

Zincrby key: Self-increment for members in Sset score

Zinterstore destination Numkeys key [key ...] [WEIGHTS weight [weight ...] [AGGREGATE sum| min| MAX]: asks for Sset intersection and saves the result set to a new key

Zrange key start Stop [Withscores]: Returns members within a certain index range in Sset

Zrangebyscore key min Max [withscores] [LIMIT offset count]: Returns members within a certain score range in Sset

Zrem Key member: Remove a member from Sset

Zremrangebyrank key start stop: Remove Sset members within a certain index range

Zremrangebyscore Key min Max: Delete Sset members within a certain score range

Zrevrange key start Stop [Withscores]: Returns members within a certain index range in Sset, in order of score from high to low

Zrevrangebyscore key Max min [withscores] [LIMIT offset count]: Returns members within a certain score range of Sset, in order score from high to low

Zscore Key member: Get score associated with a given member in Sset

Zunionstore destination Numkeys key [key ...] [WEIGHTS weight [weight ...] [AGGREGATE sum| min| MAX]: Sset set and save the result set to a new key

Hash Related:

Hdel key field: Delete a Hashfield

Hexists key field: Determine if a hashfield exists

Hget key field: Get the value of a Hashfield

Hgetall key: Get a hash of all fields and values

Hincrby key field increment: Increase the integer value of increment to the integer value of Hashfield

Hkeys key: Get Hash of all field

Hlen key: Get the total number of field in hash

Hmget key field [Field ...]: Get hash specify all values for field

Hmset key field value [Field value ...]: Set some filed and value for hash

Hset key field value: Set a hash of a field for a value

Hsetnx key field value: When a field of hash does not exist, set it to a value

Hvals key: Get all values of hash

Key Related:

DEL key [key ...]: Delete a key

Get key: Get the value of a key

Setex Key seconds Value: Set Key's value and exp time

Setnx Key value: Sets the value of key, provided it does not exist before key

Set key value: Setting Key,value

APPEND key value: Extend a value to a key

Debug OBJECT key: Get debug information for a key

DECR key: Give a KEY-1

Decrby key integer: Give a Key-integer

EXISTS key: Determine if a key exists

EXPIRE Key seconds: Set TTL for a key (second)

Expireat key timestamp: Set TTL for a key (Unix timestamp)

TTL key: Get the TTL of key

PERSIST key: Remove expiration flag for a key

KEYS pattern: Find all the pattern-compliant keys

Move key DB: Moves one key to another database

RENAME key Newkey: Rename a key

Renamenx key Newkey: Rename a key if the new keyname does not exist

Randomkey: Returns a any key from Keyspace

Value Related:

GETRANGE key start end: Gets the substring of the specified range in the string corresponding to the key

Getset Key value: Sets the value corresponding to key and returns the old value

INCR key: The integer value corresponding to key is increased by 1

Incrby key increment: The integer value corresponding to the key is self-increment increment

MGET key [key ...]: Get the value of all specified keys

MSET key value [key value ...]: Sets the values specified for the specified keys

Msetnx key value [key value ...]: When the specified key is present, the specified values are set for the specified keys

STRLEN key: Gets the value length of key

Server-Related:

Info: Get status information and statistics for the server

Monitor: Real-time monitoring of all requests received by the server

Ping:ping Server

QUIT: Close Link

PUBLISH Channel message: Post a message to a channel

AUTH Password: Authentication server

Lastsave: Time stamp for the last successful Savetodisk

Object subcommand [arguments [arguments ...]: detects the interior of a Redis object

Psubscribe pattern [pattern ...]: listens to all pattern-compliant messages posted to the channel

Punsubscribe [pattern [pattern ...]]: Stop listening for all pattern messages posted to the channel

CONFIG resetstat: Reset the status information returned by the info command

SUBSCRIBE Channel [Channel ...]: listens for messages for the specified channel

unsubscribe [Channel [channel ...]: Stop listening for messages from the specified channel

Unwatch:forget about all watched keys stop monitoring all monitored keys

Watch key [key ...]: monitor all given keys to determine the execution of multi and exec blocks

Database Related:

Save synchronously: Saving DataSet to Hard disk

SELECT Index: Toggle the current database

BGSAVE: Asynchronously saves the DataSet to the hard disk

Dbsize: Returns the total number of keys for a database

Flushall: Delete all keys on database

FLUSHDB: Delete all keys on the current database

SHUTDOWN synchronously: After saving the dataset to the hard disk, shut down the server

Configuration Related:

Config get parameter: Get a configuration parameter value

CONFIG Set parameter value: Sets a configuration parameter to the given value

Other:

Getbit Key offset: Returns the value of the key corresponding to the bit values in offset

MULTI: Identifies the beginning of a business block

SETRANGE Key offset value: overwrites the value string corresponding to the write key from the specified offset

Bgrewriteaof: Async rewrite append-only file

DEBUG Segfault: Make the server crash

DISCARD: Ignores all commands that start with multi

ECHO Message:echo Message

EXEC: Executes all commands that start with multi

Slaveof host Port: Make this server A slave of another Redis host, or make this server a master server

SYNC: Internal backup command

Linsert Key before| After Refvalue value: Insert value before or after the refvalue of the list key

Zrank Key member: Returns the rank (subscript) of the specified element in the collection, in which the elements are sorted by score from small to large

Zrevrank Key member: Ditto, but the elements in the collection are sorted by score from large to small

Type key: Returns the value type of the given key. Return none indicates that no key,string character type exists, list linked list type set unordered collection type