每日总结

 

HDFS的Shell操作（开发重点）

2.1 基本语法

hadoop fs 具体命令  OR  hdfs dfs 具体命令

两个是完全相同的。

2.2 命令大全

[atguigu@hadoop102 hadoop-3.1.3]$ bin/hadoop fs

 

[-appendToFile <localsrc> ... <dst>]

        [-cat [-ignoreCrc] <src> ...]

        [-chgrp [-R] GROUP PATH...]

        [-chmod [-R] <MODE[,MODE]... | OCTALMODE> PATH...]

        [-chown [-R] [OWNER][:[GROUP]] PATH...]

        [-copyFromLocal [-f] [-p] <localsrc> ... <dst>]

        [-copyToLocal [-p] [-ignoreCrc] [-crc] <src> ... <localdst>]

        [-count [-q] <path> ...]

        [-cp [-f] [-p] <src> ... <dst>]

        [-df [-h] [<path> ...]]

        [-du [-s] [-h] <path> ...]

        [-get [-p] [-ignoreCrc] [-crc] <src> ... <localdst>]

        [-getmerge [-nl] <src> <localdst>]

        [-help [cmd ...]]

        [-ls [-d] [-h] [-R] [<path> ...]]

        [-mkdir [-p] <path> ...]

        [-moveFromLocal <localsrc> ... <dst>]

        [-moveToLocal <src> <localdst>]

        [-mv <src> ... <dst>]

        [-put [-f] [-p] <localsrc> ... <dst>]

        [-rm [-f] [-r|-R] [-skipTrash] <src> ...]

        [-rmdir [--ignore-fail-on-non-empty] <dir> ...]

<acl_spec> <path>]]

        [-setrep [-R] [-w] <rep> <path> ...]

        [-stat [format] <path> ...]

        [-tail [-f] <file>]

        [-test -[defsz] <path>]

        [-text [-ignoreCrc] <src> ...]