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https://issues.apache.org/jira/browse/HDFS-3557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13405141#comment-13405141
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Daryn Sharp commented on HDFS-3557:
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Would you please fill in the affected versions?
> provide means of escaping special characters to `hadoop fs` command
> -------------------------------------------------------------------
>
> Key: HDFS-3557
> URL: https://issues.apache.org/jira/browse/HDFS-3557
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Jeff Hodges
> Priority: Minor
>
> When running an investigative job, I used a date parameter that selected
> multiple directories for the input (e.g. "my_data/2012/06/{18,19,20}"). It
> used this same date parameter when creating the output directory.
> But `hadoop fs` was unable to ls, getmerge, or rmr it until I used the regex
> operator "?" and mv to change the name (that is, `-mv
> output/2012/06/?18,19,20? foobar").
> Shells and filesystems for other systems provide a means of escaping "special
> characters" generically, but there seems to be no such means in HDFS/`hadoop
> fs`. Providing one would be a great way to make accessing HDFS more robust.
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