You can explore the Redis dataset using the redis-cli tool included in the Redis distribution.
Just start the tool without arguments, then type commands to explore the dataset.
For instance KEYS will list all the keys matching a glob-style pattern, for instance with: keys * you’ll see all the keys available.
Then you can use the TYPE command to check what type is a given key, if it’s a list you can retrieve the elements inside using LRANGE mykey 0 -1. If it is a Set you’ll use instead SMEMBERS mykey and so forth. Check the Redis documentation for a list of all the available commands and how they work.