Create a file in local filesystem named file1.txt and put it to hdfs

Create a file in local filesystem named file1.txt and put it to hdfs

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Answer: Solution:

Step 1: Create directory

hdfs dfs -mkdir hdfs_commands

Step 2: Create a file in hdfs named data.txt in hdfs_commands. hdfs dfs -touchz hdfs_commands/data.txt

Step 3: Now copy this data.txt file on local filesystem, however while copying file please make sure file properties are not changed e.g. file permissions.

hdfs dfs -copyToLocal -p hdfs_commands/data.txt/home/cloudera/Desktop/HadoopExam

Step 4: Now create a file in local directory named data_local.txt and move this file to hdfs in hdfs_commands directory.

touch data_local.txt

hdfs dfs -moveFromLocal /home/cloudera/Desktop/HadoopExam/dataJocal.txt hdfs_commands/

Step 5: Create a file data_hdfs.txt in hdfs_commands directory and copy it to local file system.

hdfs dfs -touchz hdfscommands/data hdfs.txt

hdfs dfs -getfrdfs_commands/data_hdfs.txt /home/cloudera/Desktop/HadoopExam/

Step 6: Create a file in local filesystem named filel .txt and put it to hdfs

touch filel.txt

hdfs dfs -put/home/cloudera/Desktop/HadoopExam/file1.txt hdfs_commands/