EXISTS
Single-key request only. Requests with multiple keys are not yet supported.
Synopsis
EXISTS key [key ...]
This command is a predicate to check whether or not the given key exists.
Return value
Returns the number of existing keys.
Examples
$ SET yuga1 "Africa"
"OK"
$ SET yuga2 "America"
"OK"
$ EXISTS yuga1
1
$ EXISTS yuga1 yuga2 not_a_key
2
See also
del, get, getrange, hdel, hexists, hget, hset, hincrby, sadd, set