Redis
Copy all keys from local to remote Redis using one liner
It took me a while to find the answer so I thought this could be helpful for you guys.
redis-cli --raw KEYS '*' | xargs redis-cli MIGRATE my.redis 6379 "" 0 5000 AUTH password-here KEYS
All credits go to this post in stackoverflow: https://stackoverflow.com/questions/37166947/copying-all-keys-in-redis-database-using-migrate
Thank you!