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chown (1)
  • chown (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • chown (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • >> chown (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  • chown (1) ( POSIX man: Команды и прикладные программы пользовательского уровня )
  • chown (2) ( Solaris man: Системные вызовы )
  • chown (2) ( FreeBSD man: Системные вызовы )
  • chown (2) ( Русские man: Системные вызовы )
  • chown (2) ( Linux man: Системные вызовы )
  • chown (3) ( POSIX man: Библиотечные вызовы )
  • chown (8) ( FreeBSD man: Команды системного администрирования )


    chown - change file owner and group


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


    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.  


    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
    like verbose but report only when a change is made
    affect the referent of each symbolic link, rather than the symbolic link itself (this is the default)
    -h, --no-dereference
    affect each symbolic link instead of any referenced file (useful only on systems that can change the ownership of a symlink)
    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)
    fail to operate recursively on `/'
    -f, --silent, --quiet
    suppress most error messages
    use RFILE's owner and group rather than the specifying OWNER:GROUP values
    -R, --recursive
    operate on files and directories recursively
    -v, --verbose
    output a diagnostic for every file processed

    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.

    if a command line argument is a symbolic link to a directory, traverse it
    traverse every symbolic link to a directory encountered
    do not traverse any symbolic links (default)
    display this help and exit
    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.  


    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".


    Written by David MacKenzie and Jim Meyering.  


    Report bugs to <>.  


    Copyright © 2006 Free Software Foundation, Inc.
    This is free software. You may redistribute copies of it under the terms of the GNU General Public License <>. There is NO WARRANTY, to the extent permitted by law.  


    The full documentation for chown is maintained as a Texinfo manual. If the info and chown programs are properly installed at your site, the command
    info chown

    should give you access to the complete manual.




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