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https://issues.apache.org/jira/browse/HADOOP-10793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14055090#comment-14055090
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Alejandro Abdelnur commented on HADOOP-10793:
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[~lmccay], I think we should be consistent with the rest of hadoop shell tools,
both KP and CP are still in trunk, so it is easy to align them without breaking
compatibility.
> Key Shell args use double 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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