### LOCAL FILE SYSTEM ###
ls
mkdir
cp
mv
rm
### LISTING ROOT DIRECTORY ###
hadoop fs -ls /
### LISTING DEFAULT TO HOME DIRECTORY ###
hadoop fs -ls
hadoop fs -ls /user/deepakdubey
### CREATE A DIRECTORY IN HDFS ###
hadoop fs -mkdir hadoop-file-system-test1
### COPY FROM LOCAL FS TO HDFS ###
hadoop fs -copyFromLocal /deepakdubey-starterkit/hdfs/commands/stocks-exchange.cvs hadoop-file-system-test1
### COPY TO HDFS TO LOCAL FS ###
hadoop fs -copyToLocal hadoop-file-system-test1/stocks-exchange.cvs .
hadoop fs -ls hadoop-file-system-test1
### CREATE 2 MORE DIRECTORIES ###
hadoop fs -mkdir hadoop-file-system-test2
hadoop fs -mkdir hadoop-file-system-test3
### COPY A FILE FROM ONE FOLDER TO ANOTHER ###
hadoop fs -cp hadoop-file-system-test1/stocks-exchange.cvs hadoop-file-system-test2
### MOVE A FILE FROM ONE FOLDER TO ANOTHER ###
hadoop fs -mv hadoop-file-system-test1/stocks-exchange.cvs hadoop-file-system-test3
### CHECK REPLICATION ###
hadoop fs -ls hadoop-file-system-test3
### CHANGE OR SET REPLICATION FACTOR ###
hadoop fs -Ddfs.replication=2 -cp hadoop-file-system-test2/stocks-exchange.cvs hadoop-file-system-test2/test-with-replication-factor-2.csv
hadoop fs -ls hadoop-file-system-test2
hadoop fs -ls hadoop-file-system-test2/test-with-replication-factor-2.csv
### CHANGING PERMISSIONS ###
hadoop fs -chmod 777 hadoop-file-system-test2/test-with-replication-factor-2.csv
### FILE SYSTEM CHECK - REQUIRES ADMIN PREVILEGES ###
sudo -u hdfs hdfs fsck /user/deepakdubey/hadoop-file-system-test2 -files -blocks -locations
sudo -u hdfs hdfs fsck /user/deepakdubey/hadoop-file-system-test3 -files -blocks -locations
sudo -u hdfs hdfs fsck /user/ubuntu/input/yelp/academic_dataset_review.json -files -blocks -locations
vi /etc/hadoop/conf/hdfs-site.xml
/data/1/dfs/dn/current/BP-2125152513-172.31.45.216-1410037307133/current/finalized
### DELETE DIR/FILES IN HDFS ###
hadoop fs -rm hadoop-file-system-test2/test-with-replication-factor-5.csv
hadoop fs -rm -r hadoop-file-system-test1
hadoop fs -rm -r hadoop-file-system-test2
hadoop fs -rm -r hadoop-file-system-test3
