# EXISTS












Returns if `key` exists.

The user should be aware that if the same existing key is mentioned in the arguments multiple times, it will be counted multiple times. So if `somekey` exists, `EXISTS somekey somekey` will return 2.

## Examples


SET key1 "Hello"
EXISTS key1
EXISTS nosuchkey
SET key2 "World"
EXISTS key1 key2 nosuchkey


## Return information

{{< multitabs id="exists-return-info" 
    tab1="RESP2" 
    tab2="RESP3" >}}

[Integer reply](../../develop/reference/protocol-spec#integers): the number of keys that exist from those specified as arguments.

-tab-sep-

[Integer reply](../../develop/reference/protocol-spec#integers): the number of keys that exist from those specified as arguments.