每日总结

HDFS 的 Shell 操作

[-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> ...]

（1）上传

 

 

（2）下载

hadoop fs -copyToLocal /sanguo/shuguo.txt ./