EXISTS

Check if given keys exist

Syntax

EXISTS key [key ...]

Returns if key exists.

Example

duva-cli> SET key1 "Hello"
"OK"
duva-cli> EXISTS key1
(integer) 1
duva-cli> EXISTS nosuchkey
(integer) 0
duva-cli> SET key2 "World"
"OK"
duva-cli> EXISTS key1 key2 nosuchkey
(integer) 2
duva-cli> 

Return value: Integer reply - the value after incrementation

Notes

• 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.