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https://issues.apache.org/jira/browse/HADOOP-7494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13085198#comment-13085198
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Hadoop QA commented on HADOOP-7494:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12490411/HADOOP-7494-v0.3.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
-1 patch. The patch command could not apply the patch.
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/38//console
This message is automatically generated.
> Add -c option for FSshell -tail
> -------------------------------
>
> Key: HADOOP-7494
> URL: https://issues.apache.org/jira/browse/HADOOP-7494
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 0.23.0
> Reporter: XieXianshan
> Assignee: XieXianshan
> Priority: Trivial
> Fix For: 0.23.0
>
> Attachments: HADOOP-7494-v0.2.patch, HADOOP-7494-v0.3.patch,
> HADOOP-7494.patch
>
>
> Add the "-c" option for FSshell -tail to allow users to specify the output
> bytes(currently,it's -1024 by default).
> For instance:
> $ hdfs dfs -tail -c -10 /user/hadoop/xiexs
> or
> $ hdfs dfs -tail -c+10 /user/hadoop/xiexs
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