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[jira] [Commented] (HADOOP-13093) Discuss whether dfs -ls should
escape control characters on terminal
[ https://issues.apache.org/jira/browse/HADOOP-13093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15271520#comment-15271520 ]
Yahoo! No Reply commented on HADOOP-13093:
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> Discuss whether dfs -ls should escape control characters on terminal
> --------------------------------------------------------------------
>
> Key: HADOOP-13093
> URL: https://issues.apache.org/jira/browse/HADOOP-13093
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: John Zhuge
> Assignee: John Zhuge
>
> HADOOP-13079 adds option {{-q}} to {{dfs -ls}} to print non-printable characters as "?". This jira will decide whether to make {{-q}} the default for {{dfs -ls}} on a terminal.
> This is a split of HADOOP-13079. The split gives us more time to debate the proper default behavior and enables different target versions.
> To test whether STDOUT is connected to a terminal, I will use {{System.console() != null}}, fully aware its limitation. JNI {{isatty(3)}} is possible but too problematic as pointed out by [~cmccabe].
> I will survey FsShell and hdfs commands and their proper expected default behaviors. Thanks [~andrew.wang] for the suggestion. More jiras may follow.
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