bin/hdfs dfs
usage: hadoop fs [generic options]
[-cat [-ignorecrc] ...]
[-checksum ...]
[-chgrp [-r] group path...]
[-chmod [-r] path...]
[-chown [-r] [owner][:[group]] path...]
[-copyfromlocal [-f] [-p] [-l] [-d] ... ]
[-copytolocal [-f] [-p] [-ignorecrc] [-crc] ... ]
[-count [-q] [-h] [-v] [-t ] [-u] [-x] ...]
[-cp [-f] [-p | -p[topax]] [-d] ... ]
[-createsnapshot ]
[-deletesnapshot ]
[-df [-h] [...]]
[-du [-s] [-h] [-x] ...]
[-expunge]
[-find ... ...]
[-get [-f] [-p] [-ignorecrc] [-crc] ... ]
[-getfacl [-r] ]
[-getfattr [-r] [-e en] ]
[-getmerge [-nl] [-skip-empty-file] ]
[-help [cmd ...]]
[-ls [-c] [-d] [-h] [-q] [-r] [-t] [-s] [-r] [-u] [...]]
[-mkdir [-p] ...]
[-movefromlocal ... ]
[-movetolocal ]
[-mv ... ]
[-put [-f] [-p] [-l] [-d] ... ]
[-renamesnapshot ]
[-rm [-f] [-r|-r] [-skiptrash] [-safely] ...]
[-rmdir [--ignore-fail-on-non-empty] ...]
[-setfacl [-r] [ ]|[--set ]]
[-setfattr ]
[-setrep [-r] [-w] ...]
[-stat [format] ...]
[-tail [-f] ]
[-test -[defsz] ]
[-text [-ignorecrc] ...]
[-touchz ...]
[-truncate [-w] ...]
[-usage [cmd ...]]
資料夾建立與刪除
上傳檔案
啟動namenode
啟動datanode
啟動resourcemanager
啟動nodemanager
啟動historyserver
檢視程序與
start對應的stop為停止相關的程序，比如sbin/hadoop-daemon.sh stop namenode
執行jar檔案例如下面的詞頻統計例項：
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