Jianfei Jiang created HDFS-13147:

             Summary: Support -c argument for DFS command head and tail
                 Key: HDFS-13147
                 URL: https://issues.apache.org/jira/browse/HDFS-13147
             Project: Hadoop HDFS
          Issue Type: New Feature
            Reporter: Jianfei Jiang
            Assignee: Jianfei Jiang

The offset of command {{head}} and {{tail}} is hard coded as 1024 bytes. Goal 
to improve it that the offset can be specified by user like Linux commands. 
Then the commands will be more flexible.

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