[GitHub] murong00 opened a new issue #3409: Some of the "-help" options in the pulsar command line tool may not perform as expected

[GitBox <gi...@apache.org>]

murong00 opened a new issue #3409: Some of the "-help" options in the pulsar command line tool may not perform as expected
URL: https://github.com/apache/pulsar/issues/3409
 
 
   **Describe the bug**
   
   It may confuse novices as below when using '--help' option of Pulsar command-line tools to get help:
   ```
   $ bin/pulsar --help
   -- Invalid command '--help' -- Use 'bin/pulsar help' to get a list of valid commands
   
   $ bin/pulsar-daemon --help
   Error: no enough arguments provided.
   
   $ bin/pulsar-perf --help
   Usage: pulsar <command>
   
   $ bin/bookkeeper --help
   Unrecognized option: --help
   ```

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