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CHGRP(1)                                                              CHGRP(1)



NAME
       chgrp - change group ownership of files

SYNOPSIS
       chgrp[options] group file...

       POSIX options: [-R][--]

       POSIX 1003.1-2001 options: [-hHLPR]

       GNU group denotation: [--reference=rfile]

       GNU options (shortest form): [-cfvR][--help][--version][--]

DESCRIPTION
       chgrp  changes  the  group ownership of each given file to group, which
       can be either a group name or a numeric group ID.

POSIXOPTIONS
       -R     Recursively change the group ownership of directories and  their
              contents.  (And continue even when errors are encountered.)

       --     Terminate option list.

AUSTINDRAFTOPTIONS
       -h     For  each file operand given that is a symlink, change the group
              ownership of the symlink  itself,  rather  than  the  object  it
              points  to. If the system does not support a group ownership for
              symlinks, do nothing for a symlink.

       -H (half-logical)
              (When given together with -R.)  For each file operand given that
              is  a  symlink to a directory, change the group ownership of the
              directory and all files in the file hierarchy below it.

       -L (logical)
              (When given together with -R.)  For each  file,  either  command
              line operand or encountered during the tree walk, that is a sym-
              link to a directory, change the group ownership of the directory
              and all files in the file hierarchy below it.

       -P (physical)
              (When  given  together  with -R.)  For each file, either command
              line operand or encountered during the tree walk, that is a sym-
              link,  change  the group ownership of the symlink itself, rather
              than the object it points to.  If the system does not support  a
              group  ownership for symlinks, do nothing for a symlink. This is
              the default.

       -R     Recursively change the group ownership of directories and  their
              contents.

ADDITIONALGNUDESCRIPTION
       A  GNU  extension  (new  in  fileutils  4.0) allows one to use --refer-
       ence=rfile as a group description: the same group as that of rfile.

GNUOPTIONS
       -c,--changes
              Verbosely describe the action for each file whose group actually
              changes.

       -f,--silent,--quiet
              Do  not  print  error messages about files whose group cannot be
              changed.

       -h,--no-dereference
              Act on symbolic links themselves instead of what they point  to.
              Only available if the lchown system call is provided.

       -v,--verbose
              Verbosely  describe  the  action  or  non-action taken for every
              file.

       -R,--recursive
              Recursively change the group ownership of directories and  their
              contents.

GNUSTANDARDOPTIONS
       --help Print  a usage message on standard output and exit successfully.

       --version
              Print version information on standard output, then exit success-
              fully.

       --     Terminate option list.

ENVIRONMENT
       The  variables  LANG,  LC_ALL,  LC_CTYPE and LC_MESSAGES have the usual
       meaning. For an XSI-conforming system: NLSPATH has the usual meaning.

CONFORMINGTO
       POSIX 1003.2 only requires the -R option. Use of other options may  not
       be portable.

NOTES
       This  page describes chgrp as found in the fileutils-4.0 package; other
       versions may  differ  slightly.   Mail  corrections  and  additions  to
       aebcwi.nl.     Report    bugs    in    the   program   to   fileutils-
       bugsgnu.edu.



GNU fileutils 4.0                   2000-08                           CHGRP(1)