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https://issues.apache.org/jira/browse/HDFS-4869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13679585#comment-13679585
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Cristina L. Abad commented on HDFS-4869:
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I tried these things and they all worked with the current patch:
hdfs dfs -get /path/to/aFile -
Result: file is printed to stdout
hdfs dfs -get /path/to/aDirWithTwoFiles/* -
Result: content of both files is printed to stdout
hdfs dfs -get /path/to/aFileThatDoesNotExist -
Result: error message "No such file or directory"
hdfs dfs -get /path/to/aFile* -
Result: prints the two files that match "aFile*" to stdout
hdfs dfs -get /path/to/aDirWithTwoFiles -
Result: error message: "Is a directory"
I guess you were referring to the last case in your comment. I thought this was
the same behavior of the prior "-get aDir -" implementation, but I could be
wrong about this.
In any case, I am OK with leaving it as won't fix; at least this jira now
documents the fact that "-get aDir -" does not work in the current versions of
Hadoop.
> FsShell get command does not support writing to stdout
> ------------------------------------------------------
>
> Key: HDFS-4869
> URL: https://issues.apache.org/jira/browse/HDFS-4869
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0, 2.1.0-beta, 0.23.8
> Reporter: Cristina L. Abad
> Assignee: Cristina L. Abad
> Priority: Minor
> Attachments: 4869.branch-0.23.patch
>
>
> In FsShell the put command supports using "\-" in place of stdin, but this
> functionality ("\-" in place of stdout) is broken in the get command.
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