Redis

Updated: 06 February 2026

Show the number of keys which exist across all databases

redis-cli info keyspace

Set a key and value on database number 4

redis-cli -n 4 set my_key my_value

Deletes all keys from all databases

redis-cli flushall

Query Redis, in a Docker Compose project, for all keys in db number 1

# quoting * to prevent shell expansion
docker compose exec redis redis-cli -n 1 keys "*"