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How to use delete all keys in a Redis

In Redis, you can flush the cache/database and delete all keys from all databases or from the particular database only using flushall and flushdb commands.

To delete all keys from all Redis databases use the flushall command.

Delete all keys in Redis

Delete all keys from all redis databases:

redis-cli flushall

Delete all keys of the currently selected Redis database:

redis-cli FLUSHDB

Delete all keys of the specified Redis database:

redis-cli -n <database_number> FLUSHDB