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HDFS Commands and Basic Shell Commands



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I am trying to practice commands from module 2. I am getting different results from the document provided in the LMS. Can please someone help, how to solve this issue.


3 Answer(s)


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Hi Hamza,
Thank you for providing the error snapshot.
1. Please check you type the correct command - hadoop fs -mkdir /dezyre. You miss the '/' in the command.
2. command - hadoop fs -cp /employee.txt /dezyre/. No dezyre directory is found because failure of 1st command.
3. command - hadoop fs -mv /employee.txt /newemployee.txt. Please check whether employee.txt file exist or not.
4. other errors are just because above failures mostly because of 1st.

Hope this is helpful.


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Hi Abhijit,
Thank you for the response. When i ran first command hadoop fs -ls /. In the document result, there is employee.txt is first line of result. My output is not showing that. Please see snapshot. Also see the result for mkdir command now i am getting error access denied. How to check if employee.txt exist or not. Thanks


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hi Hamza,

Generally on Linux, you should not do a ls -al "/" as this is in control of "root" user. I guess you are using cloudera VM, We have a video that explains and demo's all the HDFS commands https://www.youtube.com/watch?v=1er-Kkl7mq8

Thanks

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