chgrp(1)							   User Commands							  chgrp(1)

NAME

       chgrp - change file group ownership

SYNOPSIS

       chgrp [-fhR] group file...

       chgrp -s [-fhR] groupsid file...

       chgrp -R [f] [-H | -L | -P] group file...

       chgrp -s -R [f] [-H | -L | -P] groupsid file...

DESCRIPTION

       The chgrp utility will set the group ID of the file named by each file operand to the group ID specified by the group operand.

       For each file operand, it will perform actions equivalent to the  chown(2) function, called with the following arguments:

	   o	  The file operand will be used as the path argument.

	   o	  The user ID of the file will be used as the owner argument.

	   o	  The specified group ID will be used as the group argument.

       Unless  chgrp  is invoked by a process with appropriate privileges, the set-user-ID and set-group-ID bits of a regular file will be cleared
       upon successful completion; the set-user-ID and set-group-ID bits of other file types may be cleared.

       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 may change the group of the file only to a group to which the owner belongs. 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).

OPTIONS

       The following options are supported.

   /usr/bin/chgrp and /usr/xpg4/bin/chgrp
       -f    Force. Does not report errors.

       -h    If the file is a symbolic link, this option changes the group of the symbolic link. Without this option, the group of the file refer-
	     enced 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 group 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 group of the target file is changed, but no recursion takes place.

       -L    If  the  file is a symbolic link, this option changes the group of the file referenced by the symbolic link. If the file specified on
	     the command line, or encountered during the traversal of the file hierarchy, is a symbolic link referencing a file of type directory,
	     then this option changes the group 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 group of the symbolic link. This option does not follow the symbolic link to any other part of the file hierarchy.

       -s    The specified group is Windows SID. 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 chgrp.

   /usr/bin/chgrp
       -R    Recursive.  chgrp	descends through the directory, and any subdirectories, setting the specified group ID as it proceeds. When a sym-
	     bolic link is encountered, the group of the target file is changed, unless the -h or -P option is specified.  However,  no  recursion
	     takes place, unless the -H or -L option is specified.

   /usr/xpg4/bin/chgrp
       -R    Recursive.  chgrp	descends through the directory, and any subdirectories, setting the specified group ID as it proceeds. When a sym-
	     bolic link is encountered, the group 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.

OPERANDS

       The following operands are supported:

       group	A  group  name from the group database or a numeric group ID. Either specifies a group ID to be given to each file named by one of
		the file operands. If a numeric group operand exists in the group database as a group name, the group ID  number  associated  with
		that group name is used as the group ID.

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

USAGE

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

ENVIRONMENT VARIABLES

       See  environ(5) for descriptions of the following environment variables that affect the execution of chgrp: LANG, LC_ALL, LC_CTYPE, LC_MES-
       SAGES, 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/group    group file

ATTRIBUTES

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

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

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

SEE ALSO

       chmod(1), chown(1), id(1M), chown(2), fpathconf(2), group(4), passwd(4), system(4), attributes(5), environ(5), largefile(5), standards(5)

NOTES

       chgrp is CSI-enabled except for the group name.

SunOS 5.11							    11 Jul 2008 							  chgrp(1)