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The kafka-consumer-group command line tool will be extended to support the –type filter which allows to list or to describe groups implementing a specific type. 

If the types are not specified, it will list all groups implementations

# List all consumer groups with their type information
kafka-consumer-groups.sh -–bootstrap-server localhost:9092 -–list -–type

# <commaList separatedconsumer listgroups of types>specific types

kafka-consumer-groups.sh -–bootstrap-server localhost:9092 -–describe–list -–type <comma separated list of types>  

--validate-regex 

The kafka-consumer-group command line tool will be extended to support the –validate-regex which allows to verify the regular expression use by a group to subscribe to topics.

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