linux命令之 chown

是适用于ubuntu发行版

名字
       chown -改变文件的用户和所属用户组 

简介
       chown [OPTION]... [OWNER][:[GROUP]] FILE...
       chown [OPTION]... --reference=RFILE FILE...

描述
       This  manual  page documents the GNU version of chown.  chown changes the user and/or group ownership of each given file.  If only an owner (a user name or
       numeric user ID) is given, that user is made the owner of each given file, and the files' group is not changed.  If the owner is followed by a colon and  a
       group  name  (or numeric group ID), with no spaces between them, the group ownership of the files is changed as well.  If a colon but no group name follows
       the user name, that user is made the owner of the files and the group of the files is changed to that user's login group.   If  the  colon  and  group  are
       given,  but  the  owner  is  omitted,  only the group of the files is changed; in this case, chown performs the same function as chgrp.  If only a colon is
       given, or if the entire operand is empty, neither the owner nor the group is changed.


选项
       Change the owner and/or group of each FILE to OWNER and/or GROUP.  With --reference, change the owner and group of each FILE to those of RFILE.


       -c, --changes
             发生改变时打印提示信息


       --dereference
              改变源文件（默认），而不是符号链接文件。


       -h, --no-dereference
             改变符号链接文件。


       --from=CURRENT_OWNER:CURRENT_GROUP
              change the owner and/or group of each file only if its current owner and/or group match those specified here.  Either may be omitted, in which  case
              a match is not required for the omitted attribute


       --no-preserve-root
              do not treat `/' specially (the default)

       --preserve-root

              fail to operate recursively on `/'


       -f, --silent, --quiet
              显示部分信息


       --reference=RFILE
             根据RFILE文件的所属用户和所属用户组来设定当前文件。


       -R, --recursive
            递归


       -v, --verbose
              打印提示信息


       The  following  options  modify how a hierarchy is traversed when the -R option is also specified.  If more than one is specified, only the final one takes
       effect.


       -H     if a command line argument is a symbolic link to a directory, traverse it


       -L     traverse every symbolic link to a directory encountered


       -P     do not traverse any symbolic links (default)


       --help display this help and exit


       --version
              output version information and exit


       Owner is unchanged if missing.  Group is unchanged if missing, but changed to login group if implied by a `:' following a symbolic OWNER.  OWNER and  GROUP
       may be numeric as well as symbolic.

EXAMPLES
       chown root /u
              Change the owner of /u to "root".


       chown root:staff /u
              Likewise, but also change its group to "staff".


       chown -hR root /u
              Change the owner of /u and subfiles to "root".