Use Shell commands to interact with HDFS
Shell command mode to "./bin/dfs dfs" at the beginning of
1. Directory Operations
Create a user directory (hadoop user) for the hadoop user in HDFS
Create a directory in the user directory input
Create a name in the root directory of the directory input of HDFS
Delete HDFS root directory of the "input" directory
2. File operations
Use vim editor, create a file in the "/ home / hadoop /" directory on the local Linux file system: Name .txt
Free to enter some word in the document which, as student number
The local file system "/ home / hadoop / Name .txt" upload directory of the current user to input the next HDFS directory
Check to see what files have been successfully uploaded to the HDFS
View HDFS in this name .txt file
The input file from the HDFS current directory are copied to the user directory of the root directory HDFS
Delete this file from the root of HDFS
Name downloaded .txt file in HDFS to the local file system under "/ home / hadoop / download /" directory
To the local file system view downloaded files