Database Reference
In-Depth Information
Figure 5.3
Web interface for HDFS
File Manipulation Commands
Most direct interaction with HDFS involves file manipulation—creating,
deleting, or moving files. Remember that HDFS files are write-once,
read-many, so there are no commands for updating files. However, you can
manipulate the metadata associated with a file, such as the owner or group
that has access to it.
NOTE
Unlike some file systems, HDFS does not have the concept of a working
directory or a
cd
command. Most commands require that you provide a
complete path to the files or directory you want to work with.
