Redis lists (list)

Redis lists (list)

The Redis list is a simple list of strings, sorted by insertion order. You can add an element to the head of the list (left) or tail (right)

A list can contain up to 232-1 elements (4294967295, more than 4 billion elements per list).

Instance

Redis127.0.0.1:6379>Lpush Runoobkey Redis(Integer) 1Redis127.0.0.1:6379>Lpush Runoobkey MongoDB(Integer) 2Redis127.0.0.1:6379> Lpush runoobkey MySQL  (integer)  3 redis 127.0. 0.1:6379> Lrange Runoobkey 0 101    "MySQL" 2    "MongoDB" 3    "Redis"         

In the above example we used Lpush to insert three values into the list named Runoobkey .

Redis List command

The following table lists the basic commands related to the list:

Serial Number	Command and Description
1	Blpop key1 [Key2] Timeout Moves out and gets the first element of the list, if no elements of the list block the list until the wait time-out or the popup element is found.
2	Brpop key1 [Key2] Timeout Moves out and gets the last element of the list, if no element of the list blocks the list until the wait time-out or the popup element is found.
3	Brpoplpush Source Destination Timeout POPs a value from the list, inserts the pop-up element into another list, and returns it, if no element in the list blocks the list until it waits for a timeout or discovers that the element can be ejected.
4	LINDEX Key Index Get the elements in a list by index
5	Linsert Key before| After pivot value Insert an element before or after the element in the list
6	Llen Key Get list length
7	Lpop Key Move out and get the first element of a list
8	Lpush key value1 [value2] Insert one or more values into the list header
9	Lpushx Key value Inserts one or more values into the list header that already exists
10	Lrange Key Start stop Gets the element within the specified range of the list
11	Lrem Key Count value Remove a list element
12	LSET Key index value To set the value of a list element by index
13	LTRIM Key Start stop Trim (Trim) a list, which means that the list retains only the elements within the specified interval, and the elements that are not within the specified range are deleted.
14	Rpop Key Remove and get the last element of the list
15	Rpoplpush Source Destination Removes the last element of the list and adds the element to another list and returns
16	Rpush key value1 [value2] Add one or more values to the list
17	Rpushx Key value Add a value to a list that already exists

Redis lists (list)