👤
Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:
Select Section of Man Page:
Select Man Page Repository:

OpenSolaris 2009.06 - man page for chown (opensolaris section 1)

chown(1)				  User Commands 				 chown(1)

NAME
       chown - change file ownership

SYNOPSIS
   /usr/bin/chown
       /usr/bin/chown [-fhR] owner[:group] file...

       /usr/bin/chown -s [-fhR] ownersid[:groupsid] file...

       /usr/bin/chown -R [-f] [-H | -L | -P] owner[:group] file...

       /usr/bin/chown -s -R [-f] [-H | -L | -P] ownersid[:groupsid] file...

   /usr/xpg4/bin/chown
       /usr/xpg4/bin/chown [-fhR] owner[:group] file...

       /usr/xpg4/bin/chown -s [-fhR] ownersid[:groupsid] file...

       /usr/xpg4/bin/chown -R [-f] [-H | -L | -P] owner[:group] file...

       /usr/xpg4/bin/chown -s -R [-f] [-H | -L | -P] ownersid[:groupsid] file...

   ksh93
       chown [-cflhmnvHLPRX] [-r file] owner[:group] file...

DESCRIPTION
   /usr/bin/chown and /usr/xpg4/bin/chown
       The chown utility sets the user ID of the file named by each file to the user ID specified
       by owner, and, optionally, sets the group ID to that specified by group.

       If chown is invoked by other than the super-user, the set-user-ID bit is cleared.

       Only the owner of a file (or the super-user) can change the owner of that file.

       The operating system has a configuration  option  {_POSIX_CHOWN_RESTRICTED},  to  restrict
       ownership  changes.  When this option is in effect the owner of the file is prevented from
       changing the owner ID of the file. Only the super-user can arbitrarily  change  owner  IDs
       whether	or  not  this  option is in effect. To set this configuration option, include the
       following line in /etc/system:

	 set rstchown = 1

       To disable this option, include the following line in /etc/system:

	 set rstchown = 0

       {_POSIX_CHOWN_RESTRICTED} is enabled by default. See system(4) and fpathconf(2).

   ksh93
       The chown built-in in ksh93 is associated with the /bin and /usr/bin paths. It is  invoked
       when  chown  is	executed  without  a  pathname	prefix	and  the  pathname search finds a
       /bin/chown or /usr/bin/chown executable.

       chown changes the ownership of each file to owner. owner can be specified as either a user
       name  or  a numeric user id. The group ownership of each file can also be changed to group
       by appending :group to the user name.

OPTIONS
   /usr/bin/chown and /usr/xpg4/bin/chown
       The following options are supported:

       -f    Force. Does not report errors.

       -h    If the file is a symbolic link, this option changes the owner of the symbolic  link.
	     Without  this  option,  the  owner  of  the  file referenced by the symbolic link is
	     changed.

       -H    If the file specified on the command line is a symbolic link referencing a  file  of
	     type  directory,  this  option  changes the owner of the directory referenced by the
	     symbolic link and all the files in the file hierarchy below it. If a  symbolic  link
	     is  encountered  when  traversing	a file hierarchy, the owner of the target file is
	     changed, but no recursion takes place.

       -L    If the file is a symbolic link, this option changes the owner of the file referenced
	     by the symbolic link. If the file specified on the command line, or encountered dur-
	     ing the traversal of the file hierarchy, is a symbolic link referencing  a  file  of
	     type  directory,  then  this option changes the owner of the directory referenced by
	     the symbolic link and all files in the file hierarchy below it.

       -P    If the file specified on the command line or encountered during the traversal  of	a
	     file  hierarchy  is  a  symbolic link, this option changes the owner of the symbolic
	     link. This option does not follow the symbolic link to any other part  of	the  file
	     hierarchy.

       -s    The  owner  and/or  group	arguments are Windows SID strings. This option requires a
	     file system that supports storing SIDs, such as ZFS.

       Specifying more than one of the mutually-exclusive options -H, -L, or -P is not considered
       an error. The last option specified determines the behavior of chown.

   /usr/bin/chown
       The following options are supported:

       -R    Recursive. chown descends through the directory, and any subdirectories, setting the
	     specified ownership ID as it proceeds. When a  symbolic  link  is	encountered,  the
	     owner  of	the target file is changed, unless the -h or -P option is specified. How-
	     ever, no recursion takes place, unless the -H or -L option is specified.

   /usr/xpg4/bin/chown
       The following options are supported:

       -R    Recursive. chown descends through the directory, and any subdirectories, setting the
	     specified	ownership  ID  as  it  proceeds. When a symbolic link is encountered, the
	     owner of the target file is changed, unless the -h or -P option is specified. Unless
	     the -H, -L, or -P option is specified, the -L option is used as the default mode.

   ksh93
       The following options are supported by the ksh93 built-in chown command:

       -c
       --changes

	   Describe only files whose ownership actually changes.

       -f
       --quiet | silent

	   Do not report files whose ownership fails to change.

       -l | h
       --symlink

	   Change the ownership of the symbolic links on systems that support this option.

       -m
       --map

	   Interpret the first operand as a file that contains a map of:

	     from_uid:from_gid	to_uid:to_gid

	   pairs.  Ownership of files matching the from part of any pair is changed to the corre-
	   sponding to part of the pair. The process stops at the  first  match  for  each  file.
	   Unmatched files are silently ignored.

       -n
       --show

	   Show actions but do not execute.

       -r
       --reference=file

	   Omit the explicit ownership operand and use the ownership of the file instead.

       -v
       --verbose

	   Describe the changed permissions of all files.

       -H
       --metaphysical

	   Follow  symbolic  links  for command arguments. Otherwise do not follow symbolic links
	   when traversing directories.

       -L
       --logical | follow

	   Follow symbolic links when traversing directories.

       -P
       --physical | nofollow

	   Do not follow symbolic links when traversing directories.

       -R
       --recursive

	   Recursively change ownership of directories and their contents.

       -X
       --test

	   Canonicalize output for testing.

OPERANDS
       The following operands are supported:

       owner[:group]	A user ID and optional group ID to be assigned to file. The owner portion
			of  this  operand must be a user name from the user database or a numeric
			user ID. Either specifies a user ID to be given to  each  file	named  by
			file.  If a numeric owner exists in the user database as a user name, the
			user ID number associated with that user name is used  as  the	user  ID.
			Similarly,  if the group portion of this operand is present, it must be a
			group name from the group database or a numeric group ID.  Either  speci-
			fies  a  group	ID  to	be given to each file. If a numeric group operand
			exists in the group database as a group name, the group ID number associ-
			ated with that group name is used as the group ID.

       file		A path name of a file whose user ID is to be modified.

USAGE
       See  largefile(5)  for  the  description  of the behavior of chown when encountering files
       greater than or equal to 2 Gbyte ( 2^31 bytes).

EXAMPLES
       Example 1 Changing Ownership of All Files in the Hierarchy

       The following command changes ownership of all files in the hierarchy, including  symbolic
       links, but not the targets of the links:

	 example% chown -R -h owner[:group] file...

ENVIRONMENT VARIABLES
       See  environ(5)	for  descriptions  of the following environment variables that affect the
       execution of chown: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES, and NLSPATH.

EXIT STATUS
       The following exit values are returned:

       0     The utility executed successfully and all requested changes were made.

       >0    An error occurred.

FILES
       /etc/passwd    System password file

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

   /usr/bin/chown
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled. See NOTES.	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |Standard		     |See standards(5). 	   |
       +-----------------------------+-----------------------------+

   /usr/xpg4/bin/chown
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWxcu4			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled. See NOTES.	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |Standard		     |See standards(5). 	   |
       +-----------------------------+-----------------------------+

   ksh93
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |See below.		   |
       +-----------------------------+-----------------------------+

       The ksh93 built-in binding to /bin and /usr/bin is Volatile. The built-in  interfaces  are
       Uncommitted.

SEE ALSO
       chgrp(1), chmod(1),ksh93(1),  chown(2), fpathconf(2), passwd(4), system(4), attributes(5),
       environ(5), largefile(5), standards(5)

NOTES
       chown is CSI-enabled except for the owner and group names.

SunOS 5.11				   11 Jul 2008					 chown(1)


All times are GMT -4. The time now is 12:47 AM.



All times are GMT -4. The time now is 12:47 AM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
×
UNIX.COM Login
Username:
Password:  
Show Password