hadoop fs -put未知命令 [英] hadoop fs –put Unknown command

问题描述

用下面的命令创建一个文件夹[LOAN_DATA]

$ p $ /my_work/hadoop-1.0.3/bin$hadoop fs - mkdir hdfs：// masterNode：8020 / tmp / hadoop-hadoop / dfs / LOAN_DATA


现在当我们打开使用网址

目录/ tmp / hadoop-hadoop / dfs的内容显示LOAN_DATA

然后我想要使用PUT或copyFromLocal将一些TXT文件中的数据存储到LOAN_DATA文件夹中我得到

put：未知命令

/ hadoop fs -put'/home/hadoop/my_work/Acquisition_2012Q1.txt'
hdfs：// masterNode：8020 / tmp / hadoop-hadoop / dfs / LOAN_DATA

如何解决此问题？

解决方案

- 一个命令并使用它。这是因为文档中所使用的字体（或字符集）发生了变化，从中被复制。

例如：

如果您复制/粘贴并执行命令 -

hdfs dfs -put workflow.xml /testfile/workflow.xml

您可能会得到 -

  -put：Unknown command 
  

OR

  -pt：未知命令
  

发生这种情况是因为复制完成从UTF-8文件中复制的 - 或 u （或任何字符）可能具有不同的字符设置。

因此，只需在终端上键入命令（不要复制/粘贴），您应该没问题。

lockquote

或者，如果您运行的是从
复制的shell脚本，则其他编辑器将运行 dos2unix ，然后在Linux终端上运行
。

例如： dos2unix< shell_script.sh>

Create a folder [LOAN_DATA] with below command

 /my_work/hadoop-1.0.3/bin$hadoop fs -mkdir hdfs://masterNode:8020/tmp/hadoop-hadoop/dfs/LOAN_DATA

Now when we open using web URL

Contents of directory /tmp/hadoop-hadoop/dfs shows LOAN_DATA

Then I want to store some Data from a TXT file to the LOAN_DATA folder using PUT or copyFromLocal I get

put: Unknown command

/hadoop fs –put '/home/hadoop/my_work/Acquisition_2012Q1.txt' hdfs://masterNode:8020/tmp/hadoop-hadoop/dfs/LOAN_DATA

How to resolve this issue?

解决方案

This issue may occur when you copy-paste a command and use it. It is because of the change in font (or character set) used in the document from where it was copied.

For example:

If you copy/paste and execute the command -

hdfs dfs -put workflow.xml /testfile/workflow.xml

You may get-

–put: Unknown command

OR

–p-t: Unknown command

This happens because the copy is done from a UTF-8 file and the - or u (or any of the characters) copied may be of different character set.

So just type the command on the terminal (don't copy/paste) and you should be fine.

Alternatively, if you are running a shell script which was copied from some other editor then run a dos2unix on the script before running it on the Linux terminal.

Eg: dos2unix <shell_script.sh>

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