LREM

Removes the first count occurrences of elements equal to element from the list stored at key. The count argument influences the operation in the following ways:

• count > 0: Remove elements equal to element moving from head to tail.
• count < 0: Remove elements equal to element moving from tail to head.
• count = 0: Remove all elements equal to element.

For example, LREM list -2 "hello" will remove the last two occurrences of "hello" in the list stored at list.

Note that non-existing keys are treated like empty lists, so when key does not exist, the command will always return 0.

Examples

127.0.0.1:6379> RPUSH mylist "hello"
(integer) 1
127.0.0.1:6379> RPUSH mylist "hello"
(integer) 2
127.0.0.1:6379> RPUSH mylist "foo"
(integer) 3
127.0.0.1:6379> RPUSH mylist "hello"
(integer) 4
127.0.0.1:6379> LREM mylist -2 "hello"
(integer) 2
127.0.0.1:6379> LRANGE mylist 0 -1
1) "hello"
2) "foo"

RESP2/RESP3 Reply

Integer reply: the number of removed elements.