Archive - June 4, 2019

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13 Must Know Hadoop HDFS Commands Every Data Engineer Must Know

13 Must Know Hadoop HDFS Commands Every Data Engineer Must Know

For those of you who are not used to working with servers using the command line, welcome to the command line, here are the Hadoop commands that you need to know to explore the HDFS landscape. If you have already worked with servers before you know the importance of managing file using the command line. Let’s get started:- Hadoop dfs – ls <Path name> This command lists out all the different files and folders in a particular path. There is no cd (change directory) command in hdfs file system. You can only list the directories and use them for reaching the next directory. 2) Hadoop dfs – mkdir <Path name> For creating new folders in the HDFS use the mkdir command. Provide the relative path where you want to create the folder. Now let us check if the folder was created. 3) Hadoop dfs -cp <File Path> <Path of copied file>  As I[…]

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