HDFS DFS MV

In Hadoop HDFS (Hadoop Distributed File System), the hdfs dfs -mv command is used to move or rename files and directories from one location to another within the HDFS filesystem. It allows you to change the path of an existing file or directory. Here’s the basic syntax of the hdfs dfs -mv command:

• <source>: This is the source file or directory that you want to move or rename. It should be the HDFS path to the source.

• <destination>: This is the destination path where you want to move or rename the source. It should also be an HDFS path.

Examples:

1. To rename a file in HDFS, you can use the hdfs dfs -mv command as follows:

   bashCopy code

   hdfs dfs -mv /user/yourusername/old_filename.txt /user/yourusername/new_filename.txt

   This command renames the file old_filename.txt to new_filename.txt in the same directory.

2. To move a file from one directory to another, you can specify different source and destination paths:

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   hdfs dfs -mv /user/yourusername/source_directory/file.txt /user/yourusername/destination_directory/

   This command moves the file file.txt from source_directory to destination_directory.

3. To rename a directory in HDFS, use a similar approach:

   bashCopy code

   hdfs dfs -mv /user/yourusername/old_directory /user/yourusername/new_directory

   This command renames the directory old_directory to new_directory.

4. You can also move a file into an existing directory:

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   hdfs dfs -mv /user/yourusername/file.txt /user/yourusername/existing_directory/

   This moves file.txt into the existing_directory.