How can i find all elements in redis which is empty i have keys like this:
setting:1
setting:2
setting:442
etc
how can i search with redis-cli bash script command if any key contains empty value
Something like redis-cli keys \* | xargs -L 1 redis-cli get
with grep and check if value is empty
found solution
redis-cli KEYS "settings:*" | xargs -L 1 redis-cli get
The notion of an empty key in Redis is non-existent - there are no empty keys in Redis. If a key "becomes" empty (e.g. a List that was popped with the final element), the key does not exist in Redis anymore. Here's an example:
foo@bar:~$ redis-cli
127.0.0.1:6379> exists foo
(integer) 0
127.0.0.1:6379> rpush foo bar
(integer) 1
127.0.0.1:6379> exists foo
(integer) 1
127.0.0.1:6379> lpop foo
"bar"
127.0.0.1:6379> exists foo
(integer) 0
127.0.0.1:6379>
