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命令描述
hadoop fs -ls列出某个目录的内容
hadoop fs -mkdir创建空目录
hadoop fs -copyFromLocal/copyToLocal本地文件上传/下载至HDFS
hadoop fs -rm删除文件或目录
hadoop fs -mv移动某个文件或目录
hadoop fs -tail显示一个文件的末尾内容
hadoop fs -cat显示一个文件的内容
hadoop fs -touchz创建一个空文件
hadoop fs -getmerge合并多个文件成一个文件
hadoop fs -du查看文件大小
hadoop fs -dus查看目录下文件大小
hadoop fs -put将文件复制到HDFS中
hadoop fs -appendToFile追加文件到HDFS中
hadoop fs -chown改变文件所有者
hadoop fs -chgrp改变文件所属组
hadoop fs -chmod改变文件权限
hadoop fs -test -[ez]检查文件/目录是否存在
hadoop fs -stat获取文件信息
hadoop fs -expunge清除文件系统中废弃的文件
hadoop fs -put上传文件到hdfs
hadoop fs -moveFromLocal移动本地文件到HDFS
hadoop fs -get从HDFS下载文件
hadoop fs -copyToRemote从远程服务器拷贝文件到HDFS
hadoop fs -text把一个文件转换为文本文件
hadoop fsck检查HDFS文件系统的完整性
hadoop dfsadmin -report列出hdfs集群的报告
hadoop version查看hadoop版本信息
hadoop archive -archiveName创建一个归档文件
hadoop distcp复制集群的文件和目录
hadoop balancer平衡HDFS集群中的数据。