Redis
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touch

TOUCH

TOUCH key [key ...]

Available since 3.2.1.

Time complexity: O(N) where N is the number of keys that will be touched.

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

Return value

Integer reply: The number of keys that were touched.

Examples

redis> SET key1 "Hello" "OK" redis> SET key2 "World" "OK" redis> TOUCH key1 key2 ERR Unknown or disabled command 'TOUCH'