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HDFs Common commands in Hadoop

Source: Internet
Author: User
Tags safe mode hadoop fs
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Hadoop fs-mkdir/tmp/input new folder on HDFs

Hadoop fs-put input1.txt/tmp/input The local file input1.txt to the/tmp/input directory in HDFs

Hadoop fs-get input1.txt/tmp/input/input1.txt to pull HDFs files to local
Hadoop fs-ls/tmp/output lists a directory for HDFs
Hadoop fs-cat/tmp/ouput/output1.txt viewing files on HDFs

Hadoop fs-rmr/home/less/hadoop/tmp/output Delete directories on HDFs

Hadoop dfsadmin-report View HDFs status, such as which Datanode, each Datanode case

Hadoop Dfsadmin-safemode leave out of Safe mode

Hadoop Dfsadmin-safemode Enter Safe mode


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