Delete all keys from Redis matching a regular expression

redis-delallbykey

# All credit: http://stackoverflow.com/questions/4006324/how-to-atomically-delete-keys-matching-a-pattern-with-redis
redis-cli [options] KEYS "prefix:*" | xargs redis-cli [options] DEL

Thanks @ali
These commands are ridiculously slow when you have millions of keys

@peterpoliwoda you can do the following:

redis-cli -h <HOST> -p <PORT> -a <PASSWORD> --scan --pattern "patter*n" | xargs redis-cli -h <HOST> -p <PORT> -a <PASSWORD> unlink

Using unlink is better then using del as stated in: https://redis.io/commands/unlink

Thanks, it did work.

If your keys have any escape characters you need to change the xargs delimiter:

redis-cli --scan --pattern "horizon:failed:*" | xargs -n 1 -d '\n' redis-cli DEL

that's my case, it worked - thanks a lot @jessecurry

How do I achieve the same using the redis pypi package ? Right now I'm using r.delete(*r.keys("someKey_*"))