1. Hadoop Basics commands
Agenda
Create directory on HDFS
List your directories/files on HDFS
Copy data from local FS to HDFS
Copy data from HDFS to local FS
Copy data from HDFS to HDFS
View content of a file on HDFS
Delete data from HDFS
Get help for HDFS commands
All Hadoop commands
All Hadoop dfs commands
View HDFS on browser
View your data on Browser
2. Create directory on HDFS
./hadoop dfs -mkdir /input_files
List your directories/files on HDFS
./hadoop dfs -ls << HDFS path >>
3. Copy data from Local FS to HDFS
./hadoop dfs -copyFromLocal <<local path>> <<HDFS path>>
Copy data from HDFS to local FS
./hadoop dfs -copyToLocal <<HDFS path>> <<local path>>
4. Copy data from HDFS to HDFS
./hadoop dfs -cp << HDFS path >> << HDFS path >>
View content of a file on HDFS
./hadoop dfs -cat <<HDFS file path>>
5. Delete data from HDFS
./hadoop dfs -rm << HDFS file path
Get help for HDFS commands
./hadoop dfs -help << HDFS command