Now I am connect to redis, find some keys like this:
> keys "user:login:user:*"
user:login:user:62668
user:login:user:61970
user:login:user:63586
......
Now I want to delete this keys, I have tried:
keys "user:login:user:*" | xargs del
keys "user:login:user:*" | del
keys "user:login:user:*" | redis-cli xargs del
both could not work, what should I do to delete it batch for one action?
Although @Guy Korland answered the question, but that way may cause long-term blocking. We should always remmber redis use single thread to operate data, so if you have a lot of keys match user:login:user:* or each key's type is list, set, hash, sorted_set with a lot of elements. The deletion process will cost lots of time, redis cannot respond to other command.
redis-cli --scan --pattern users:* | xargs redis-cli unlink
use scan && unlink instead of keys && del can avoid blocking.
scan and keys, unlink and del:You need to run redis-cli with --raw to get the result clean as arguments fro the redis-cli del
redis-cli del `redis-cli --raw keys "user:login:user:*"`
