GET key
Available since: 1.0.0
Time complexity: O(1)
ACL categories:
@read
@string
@fast
Get the value of key.
If the key does not exist the special value nil is returned.
An error is returned if the value stored at key is not a string, because GET
only handles string values.
Return
Bulk string reply: the value of key, or nil when key does not exist.