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https://issues.apache.org/jira/browse/HDDS-438?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal updated HDDS-438:
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Description:
When invoked without the command or sub-command, _ozone oz_ prints the
following error:
{code:java}
$ ozone oz
Please select a subcommand
{code}
and
{code:java}
$ ozone oz volume
Please select a subcommand
{code}
For most familiar with Unix utilities it is obvious they should rerun the
command with _--help._ However we can just print the usage instead to avoid
guesswork
was:
When invoked without the command or sub-command, _ozone oz_ prints the
following error:
{code:java}
$ ozone oz
Picked up _JAVA_OPTIONS: -Djava.awt.headless=true
Please select a subcommand
{code}
and
{code:java}
$ ozone oz volume
Picked up _JAVA_OPTIONS: -Djava.awt.headless=true
Please select a subcommand
{code}
For most familiar with Unix utilities it is obvious they should rerun the
command with _--help._ However we can just print the usage instead to avoid
guesswork
> 'ozone oz' should print usage when command or sub-command is missing
> --------------------------------------------------------------------
>
> Key: HDDS-438
> URL: https://issues.apache.org/jira/browse/HDDS-438
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Components: Tools
> Reporter: Arpit Agarwal
> Priority: Major
> Labels: newbie
>
> When invoked without the command or sub-command, _ozone oz_ prints the
> following error:
> {code:java}
> $ ozone oz
> Please select a subcommand
> {code}
> and
> {code:java}
> $ ozone oz volume
> Please select a subcommand
> {code}
> For most familiar with Unix utilities it is obvious they should rerun the
> command with _--help._ However we can just print the usage instead to avoid
> guesswork
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