Redis Common Commands

DEL key [key ...] deletes the given one or more key spaces separately.
EXISTS phone to determine if key exists
EXPIRE Cache_page 30 # Set the expiration time to 30 seconds
TTL cache_page # View remaining live time
Move song 1 moves song to database 1

Lpush T9 "value 1" is stored as a linked list
Lpush T9 "Value 1"
Lrange T9 0 2 The value index is 012
Llen T9 Length
Linsert T9 berore he5 "99" Insert "99" in front of He5
LTRIM T9 1 3 only keep index 123 other deletions

Commands related to connection operations
Quit: Close connection (connection)
Auth: simple Password Authentication persistence
Save: Synchronize data to disk
Bgsave: Asynchronously saving data to disk
Lastsave: Returns the UNIX timestamp when the data was last successfully saved to disk
Shundown: Save data synchronously to disk, and then turn off service remote service control
Info: Provide information and statistics about the server
Monitor: Live dump of received requests
slaveof: Changing Replication policy settings
Config: Configure the Redis server at run time

Value action command
exists (key): Verify that a key exists
Del (key): Delete a key
type (key): The type of the return value
keys (pattern) : Returns all keys that satisfy the given pattern
Randomkey: Randomly returns a
Keyrename (oldname, newname) of the key space: Rename key
Dbsize: Returns the number of keys in the current database
expire: Sets the active time (s) of a key
TTL: Gets the active time of a key
Select index: Query by index
Move (key,  Dbindex): Move the key in the current database to the Dbindex database
FLUSHDB: Delete all keys in the currently selected database
Flushall: Delete all keys in all databases

Command for string operation
Set (key, value): Assigns a value to the string named key in the database to the values
Get (Key): Returns the value of string named key in the database
Getset ( Key, value): gives a string named key the last value
Mget (key1, Key2,..., key N): Returns the value of multiple strings in the library
Setnx (key, Value): Add string , named key, Value
Setex (key, time, value): Add string to library, set expiration time
Mset (key n, value N) : Batch setting of multiple string values
Msetnx (key n, value N): If all strings with the name Key i do not exist
INCR (key): A string with the name of Key 1 operation
Incrby ( Key, Integer): String with Name Key added integer
DECR (key): string minus 1 operation with name Key
Decrby (key, Integer) : string with name key is reduced by integer
Append (key, value): String value with Name key appended value
substr (key, start, end) : Returns a substring of the value of string named key

Rpush (key, value): Adds an element of value to the list at the end of the name Key
Lpush (key, value): Adds a   element of value to the list header named key
Llen ( Key): Returns the length of the list named key
Lrange (key, start, end): Returns the element between start and end in list named key
LTrim (key, start, end) : Intercepts the list
Lindex (key, index) named key: Returns the element with the index position in the list named key
LSet (key, index, value) : Assigns the element of the index position in the list named key
Lrem (key, Count, value): Removes the element with value in the list of Count keys
Lpop (key) : Returns and removes the first element of the list named key
Rpop (key): Returns and removes the tail element in the list named key
Blpop (Key1, Key2,... key N, timeout): The block version of the Lpop command.
Brpop (key1, Key2,... key N, timeout): The block version of Rpop.
Rpoplpush (Srckey, Dstkey): Returns and removes the tail element of the list named Srckey, and adds the element to the head of the list named Dstkey

Command for set operation
Sadd (key, member): Adds an element to a set named Key member
Srem (key, member)  : Deletes an element in a set named Key member
Spop (key)  : Randomly returns and deletes an element in the set named Key
Smove (Srckey, Dstkey, member)  : Move to the collection element
SCard (key)   : Returns the cardinality of the set named Key
Sismember (key, member)  :member is a set element named Key
Sinter (Key1, Key2,... key N)  : Intersection
Sinterstore (Dstkey, (keys))  : Intersection and save intersection to Dstkey collection
Sunion (Key1, Keys)  : Set
Sunionstore ( Dstkey, (keys))  : Sets and saves the set to Dstkey collection
Sdiff (Key1, (keys))  : Differential set
Sdiffstore (Dstkey, (keys))   : The differential set and save the difference to the collection of Dstkey
Smembers (key)  : Returns all elements of a set named Key
Srandmember (key)  : Randomly returns an element of a set with the name key

Commands for hash operations
Hset (Key, field, value): Adds an element to a hash named key field
Hget (Key, field): Returns the value of field corresponding to the hash named key
Hmget (Key, fields): Returns the value of field I in the hash named key
Hmset (Key, fields): Adds an element to a hash named key field
Hincrby (Key, field, integer): Adds an integer to the value of field in the hash named key
Hexists (Key, field): A field with the key field in the hash named key
Hdel (Key, field): Delete The field with the key field in the hash named key
Hlen (Key): Returns the number of elements in a hash with the name key
Hkeys (Key): Returns all keys in a hash with the name key
Hvals (Key): Returns the value corresponding to all keys in a hash with the name key
Hgetall (Key): Returns all keys (field) and their corresponding value in a hash with the name key

Redis Common Commands