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chgrp(1)

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 fpath‐
       conf(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
             referenced by the symbolic link is changed.


       -H    If the file specified on the command line is a symbolic link ref‐
             erencing 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 hierar‐
             chy 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 fol‐
             low 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  subdi‐
             rectories,  setting the specified group ID as it proceeds. When a
             symbolic 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  subdi‐
             rectories,  setting the specified group ID as it proceeds. When a
             symbolic 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  asso‐
                ciated 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
       tab()   box;   cw(2.75i)  |cw(2.75i)  lw(2.75i)  |lw(2.75i)  ATTRIBUTE
       TYPEATTRIBUTE VALUE _ Availabilitysystem/core-os _  CSIEnabled.  See
       NOTES.  _ Interface StabilityCommitted _ StandardSee standards(5).


   /usr/xpg4/bin/chgrp
       tab()   box;   cw(2.75i)  |cw(2.75i)  lw(2.75i)  |lw(2.75i)  ATTRIBUTE
       TYPEATTRIBUTE VALUE _  Availabilitysystem/xopen/xcu4  _  CSIEnabled.
       See  NOTES.   _  Interface  StabilityCommitted  _  StandardSee  stan‐
       dards(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), stan‐
       dards(5)

NOTES
       chgrp is CSI-enabled except for the group name.



SunOS 5.11                        11 Jul 2008                         chgrp(1)
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