<pre>chown: 不适用的选项 --

这个错误信息通常是因为你在使用 `chown` 命令时输入了错误的选项。请确保你输入的命令中包含正确的选项。可能的原因是你使用了一个不支持的选项或者选项的拼写不正确。

请注意，`chown` 命令用于更改文件或目录的所有者。正确的用法是：

chown ownername filename

其中 `ownername` 是你想要将文件或目录的所有权更改为的用户或组的名称，`filename` 是要更改所有权的文件或目录的名称。

如果你需要更多帮助，请提供你尝试运行的完整命令和相关的错误消息。

相关问题

–mkdir: Unknown command Usage: hadoop fs [generic options] [-appendToFile <localsrc> ... <dst>] [-cat [-ignoreCrc] <src> ...] [-checksum <src> ...] [-chgrp [-R] GROUP PATH...] [-chmod [-R] <MODE[,MODE]... | OCTALMODE> PATH...] [-chown [-R] [OWNER][:[GROUP]] PATH...] [-copyFromLocal [-f] [-p] [-l] [-d] <localsrc> ... <dst>] [-copyToLocal [-f] [-p] [-ignoreCrc] [-crc] <src> ... <localdst>] [-count [-q] [-h] [-v] [-t [<storage type>]] [-u] [-x] <path> ...] [-cp [-f] [-p | -p[topax]] [-d] <src> ... <dst>] [-createSnapshot <snapshotDir> [<snapshotName>]] [-deleteSnapshot <snapshotDir> <snapshotName>] [-df [-h] [<path> ...]] [-du [-s] [-h] [-x] <path> ...] [-expunge] [-find <path> ... <expression> ...] [-get [-f] [-p] [-ignoreCrc] [-crc] <src> ... <localdst>] [-getfacl [-R] <path>] [-getfattr [-R] {-n name | -d} [-e en] <path>] [-getmerge [-nl] [-skip-empty-file] <src> <localdst>] [-help [cmd ...]] [-ls [-C] [-d] [-h] [-q] [-R] [-t] [-S] [-r] [-u] [<path> ...]] [-mkdir [-p] <path> ...] [-moveFromLocal <localsrc> ... <dst>] [-moveToLocal <src> <localdst>] [-mv <src> ... <dst>] [-put [-f] [-p] [-l] [-d] <localsrc> ... <dst>] [-renameSnapshot <snapshotDir> <oldName> <newName>] [-rm [-f] [-r|-R] [-skipTrash] [-safely] <src> ...] [-rmdir [--ignore-fail-on-non-empty] <dir> ...] [-setfacl [-R] [{-b|-k} {-m|-x <acl_spec>} <path>]|[--set <acl_spec> <path>]] [-setfattr {-n name [-v value] | -x name} <path>] [-setrep [-R] [-w] <rep> <path> ...] [-stat [format] <path> ...] [-tail [-f] <file>] [-test -[defsz] <path>] [-text [-ignoreCrc] <src> ...] [-touchz <path> ...] [-truncate [-w] <length> <path> ...] [-usage [cmd ...]] Generic options supported are: -conf <configuration file> specify an application configuration file -D <property=value> define a value for a given property -fs <file:///|hdfs://namenode:port> specify default filesystem URL to use, overrides 'fs.defaultFS' property from configurations. -jt <local|resourcemanager:port> specify a ResourceManager -files <file1,...> specify a comma-separated list of files to be copied to the map reduce cluster -libjars <jar1,...> specify a comma-separated list of jar files to be included in the classpath -archives <archive1,...> specify a comma-separated list of archives to be unarchived on the compute machines The general command line syntax is: command [genericOptions] [commandOptions]

这个错误提示表明你使用了不正确的命令格式。根据错误提示信息，你使用了以下命令：

–mkdir

这个命令格式不正确，应该使用以下命令格式：

hadoop fs -mkdir <path>

其中 `<path>` 是你想要创建的目录路径。请注意，命令中的连字符应该是英文状态下的减号，而不是中文状态下的破折号。

此外，你还可以使用 `mkdir` 命令来创建目录，例如：

hadoop fs mkdir <path>

希望这些信息能够帮助你解决问题。如果你有其他问题，请随时提问。

-mkdir: java.net.UnknownHostException: CentOS764FCDW Usage: hadoop fs [generic options] [-appendToFile <localsrc> ... <dst>] [-cat [-ignoreCrc] <src> ...] [-checksum <src> ...] [-chgrp [-R] GROUP PATH...] [-chmod [-R] <MODE[,MODE]... | OCTALMODE> PATH...] [-chown [-R] [OWNER][:[GROUP]] PATH...] [-copyFromLocal [-f] [-p] [-l] [-d] [-t <thread count>] <localsrc> ... <dst>] [-copyToLocal [-f] [-p] [-ignoreCrc] [-crc] <src> ... <localdst>] [-count [-q] [-h] [-v] [-t [<storage type>]] [-u] [-x] [-e] <path> ...] [-cp [-f] [-p | -p[topax]] [-d] <src> ... <dst>] [-createSnapshot <snapshotDir> [<snapshotName>]] [-deleteSnapshot <snapshotDir> <snapshotName>] [-df [-h] [<path> ...]] [-du [-s] [-h] [-v] [-x] <path> ...] [-expunge] [-find <path> ... <expression> ...] [-get [-f] [-p] [-ignoreCrc] [-crc] <src> ... <localdst>] [-getfacl [-R] <path>] [-getfattr [-R] {-n name | -d} [-e en] <path>] [-getmerge [-nl] [-skip-empty-file] <src> <localdst>] [-head <file>] [-help [cmd ...]] [-ls [-C] [-d] [-h] [-q] [-R] [-t] [-S] [-r] [-u] [-e] [<path> ...]] [-mkdir [-p] <path> ...] [-moveFromLocal <localsrc> ... <dst>] [-moveToLocal <src> <localdst>] [-mv <src> ... <dst>] [-put [-f] [-p] [-l] [-d] <localsrc> ... <dst>] [-renameSnapshot <snapshotDir> <oldName> <newName>] [-rm [-f] [-r|-R] [-skipTrash] [-safely] <src> ...] [-rmdir [--ignore-fail-on-non-empty] <dir> ...] [-setfacl [-R] [{-b|-k} {-m|-x <acl_spec>} <path>]|[--set <acl_spec> <path>]] [-setfattr {-n name [-v value] | -x name} <path>] [-setrep [-R] [-w] <rep> <path> ...] [-stat [format] <path> ...] [-tail [-f] [-s <sleep interval>] <file>] [-test -[defsz] <path>] [-text [-ignoreCrc] <src> ...] [-touch [-a] [-m] [-t TIMESTAMP ] [-c] <path> ...] [-touchz <path> ...] [-truncate [-w] <length> <path> ...] [-usage [cmd ...]] Generic options supported are: -conf <configuration file> specify an application configuration file -D <property=value> define a value for a given proper

这个错误信息看起来像是在使用 Hadoop 的命令行工具时出现了问题。具体来说，似乎是在尝试创建一个目录时遇到了网络连接问题（UnknownHostException）。你可以先检查一下你的网络连接是否正常，然后再尝试运行这个命令。另外，也可以尝试使用 -v 参数来获取更详细的调试信息，以便更好地定位问题。