HDFS user Guide

 Apache Hadoop Project Dist POM > Apache Hadoop 3.2.1 > HDFS Users Guide :  https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/HdfsUserGuide.html

Apache Hadoop Project Dist POM > Apache Hadoop 3.2.1 > Overview

Hadoop hdfs  linux 文件常用命令：https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/FileSystemShell.html

• appendToFile
• cat
• checksum
• chgrp
• chmod
• chown
• copyFromLocal
• copyToLocal
• count
• cp
• createSnapshot
• deleteSnapshot
• df
• du
• dus
• expunge
• find
• get
• getfacl
• getfattr
• getmerge
• head
• help
• ls
• lsr
• mkdir
• moveFromLocal
• moveToLocal
• mv
• put
• renameSnapshot
• rm
• rmdir
• rmr
• setfacl
• setfattr
• setrep
• stat
• tail
• test
• text
• touch
• touchz
• truncate
• usage
• Deleting objects
• Overwriting Objects
• Timestamps
• Security model and operations
• Commands of limited value