Removes the specified keys. A key is ignored if it does not exist.
Examples
127.0.0.1:6379> SET key1 "Hello"
OK
127.0.0.1:6379> SET key2 "World"
OK
127.0.0.1:6379> DEL key1 key2 key3
(integer) 2
Deletes one or more keys.
Removes the specified keys. A key is ignored if it does not exist.
127.0.0.1:6379> SET key1 "Hello"
OK
127.0.0.1:6379> SET key2 "World"
OK
127.0.0.1:6379> DEL key1 key2 key3
(integer) 2
Integer reply: the number of keys that were removed.
Integer reply: the number of keys that were removed.