// Listen for messages published to channels matching the given patterns
PSUBSCRIBE pattern [pattern ...]
// Inspect the state of the Pub/Sub subsystem
PUBSUB subcommand [argument [argument ...]]
// Post a message to a channel
PUBLISH channel message
// Stop listening for messages posted to channels matching the given patterns
PUNSUBSCRIBE [pattern [pattern ...]]
// Listen for messages published to the given channels
SUBSCRIBE channel [channel ...]
// Stop listening for messages posted to the given channels
UNSUBSCRIBE [channel [channel ...]]