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https://issues.apache.org/jira/browse/HADOOP-10793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14065497#comment-14065497
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Andrew Wang commented on HADOOP-10793:
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Hey Owen, since that'd be incompatible, we can't switch everything over until
3.0. If this stuff wants to appear in a 2.x, I think consistency is the most
important consideration, and thus should use a single dash.
Even for 3.0, I don't think the ROI is positive. The Hadoop commands have used
a single dash forever, and there's precedent for this style in the {{java}}
command. Hadoop users at this point are used to it.
> KeyShell and CredentialShell args should use single-dash style
> --------------------------------------------------------------
>
> Key: HADOOP-10793
> URL: https://issues.apache.org/jira/browse/HADOOP-10793
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 3.0.0
> Reporter: Mike Yoder
>
> Follow-on from HADOOP-10736 as per [~andrew.wang] - the key shell uses the
> gnu double dash style for command line args, while other command line
> programs use a single dash. Consider changing this, and consider another
> argument parsing scheme, like the CommandLine class.
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