John Zhuge created HADOOP-13093:
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Summary: 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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