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https://issues.apache.org/jira/browse/HADOOP-8175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13230720#comment-13230720
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Tsz Wo (Nicholas), SZE commented on HADOOP-8175:
------------------------------------------------
Oops, we forgot to update the usage and description of mkdir.
> Add mkdir -p flag
> -----------------
>
> Key: HADOOP-8175
> URL: https://issues.apache.org/jira/browse/HADOOP-8175
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs
> Affects Versions: 0.23.0, 0.24.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.24.0
>
> Attachments: HADOOP-8175.patch
>
>
> Users require the ability to create a directory iff it doesn't exist.
> Currently, running FsShell's mkdir twice will result in an already exists
> error. The unix mkdir -p flag won't fail if the directory already exists.
> Per parent jira, pig project would also like this feature.
> (Eventually mkdir should probably also stop creating all intermediate dirs
> unless -p is given, but that's an incompatible change)
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