[jira] [Created] (KAFKA-7418) Add '--help' option to all available Kafka CLI commands

["Attila Sasvari (JIRA)" <ji...@apache.org>]

Attila Sasvari created KAFKA-7418:
-------------------------------------

             Summary: Add '--help' option to all available Kafka CLI commands 
                 Key: KAFKA-7418
                 URL: https://issues.apache.org/jira/browse/KAFKA-7418
             Project: Kafka
          Issue Type: Improvement
          Components: tools
            Reporter: Attila Sasvari


Currently, the '--help' option is not recognized by some Kafka commands . For example:
{code}
$ kafka-console-producer --help
help is not a recognized option
{code}

However, the '--help' option is supported by other commands:
{code}
$ kafka-verifiable-producer --help
usage: verifiable-producer [-h] --topic TOPIC --broker-list HOST1:PORT1[,HOST2:PORT2[...]] [--max-messages MAX-MESSAGES] [--throughput THROUGHPUT] [--acks ACKS]
                           [--producer.config CONFIG_FILE] [--message-create-time CREATETIME] [--value-prefix VALUE-PREFIX]

...
{code} 

To provide a consistent user experience, it would be nice to add a '--help' option to all Kafka commands.




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