Start Practicing on Cloudera with using all HDFS commands.(Real practicals)))

Going you give you basics understanding on HDFS Commands.
1. Hadoop Namenode Commands
Command Description
hadoop namenode -format Format HDFS filesystem from Namenode
hadoop namenode -upgrade Upgrade the NameNode
start-dfs.sh Start HDFS Daemons
stop-dfs.sh Stop HDFS Daemons
start-mapred.sh Start MapReduce Daemons
stop-mapred.sh Stop MapReduce Daemons
hadoop namenode -recover -force Recover namenode metadata after a cluster failure (may lose data)
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