TOUCH

Returns the number of existing keys out of those specified after updating the time they were last accessed.

Usage: TOUCH key ...
Complexity: O(N) where N is the number of keys that will be touched.
Since: 3.2.1
ACL Categories: @fast, @keyspace, @read
Command flags: READONLY, FAST

Alters the last access time of a key(s). A key is ignored if it does not exist.

Examples

127.0.0.1:6379> SET key1 "Hello"
OK
127.0.0.1:6379> SET key2 "World"
OK
127.0.0.1:6379> TOUCH key1 key2
(integer) 2

Replies

RESP2

Integer reply: the number of touched keys.

RESP3

Integer reply: the number of touched keys.