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Redis Lists

# Redis Lists Redis lists are simple string lists, sorted in insertion order. You can add an element to the head (left) or tail (right) of a list. A list can contain a maximum of 2^32 - 1 elements (4,294,967,295, over 4 billion elements per list). ### Example redis 127.0.0.1:6379> LPUSH tutorialkey redis (integer) 1 redis 127.0.0.1:6379> LPUSH tutorialkey mongodb (integer) 2 redis 127.0.0.1:6379> LPUSH tutorialkey mysql (integer) 3 redis 127.0.0.1:6379> LRANGE tutorialkey 0 10 1) "mysql" 2) "mongodb" 3) "redis" In the above example, we used **LPUSH** to insert three values into a list named **tutorialkey**. ### Redis List Commands The following table lists the basic commands related to lists: | No. | Command & Description | | --- | --- | | 1 | [BLPOP key1 timeout](#) Removes and returns the first element of the list, or blocks the list until an element is available or the timeout is reached. | | 2 | [BRPOP key1 timeout](#) Removes and returns the last element of the list, or blocks the list until an element is available or the timeout is reached. | | 3 | (#) Pops a value from a list, pushes it to another list, and returns it; or blocks the list until an element is available or the timeout is reached. | | 4 | (#) Gets an element from a list by its index. | | 5 | [LINSERT key BEFORE|AFTER pivot value](#) Inserts an element before or after another element in a list. | | 6 | (#) Gets the length of a list. | | 7 | (#) Removes and returns the first element of the list. | | 8 | [LPUSH key value1 ](#) Inserts one or more values at the head of the list. | | 9 | (#) Inserts a value at the head of the list only if the list already exists. | | 10 | (#) Gets a range of elements from a list. | | 11 | (#) Removes elements from a list. | | 12 | (#) Sets the value of an element in a list by its index. | | 13 | (#) Trims an existing list so that it will contain only the specified range of elements. | | 14 | (#) Removes and returns the last element of the list. | | 15 | (#) Removes the last element of the source list, pushes it to the destination list, and returns it. | | 16 | [RPUSH key value1 ](#) Appends one or more values to the tail of the list. | | 17 | (#) Appends a value to the tail of the list only if the list already exists. |
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