chgrp(1) — Linux manual page

CHGRP(1)                      User Commands                     CHGRP(1)

NAME

       chgrp - change group ownership

SYNOPSIS

       chgrp [OPTION]... GROUP FILE...
       chgrp [OPTION]... --reference=RFILE FILE...

DESCRIPTION

       Change the group of each FILE to GROUP.  With --reference, change
       the group of each FILE to that of RFILE.

       -c, --changes
              like verbose but report only when a change is made

       -f, --silent, --quiet
              suppress most error messages

       -v, --verbose
              output a diagnostic for every file processed

       --dereference
              affect the referent of each symbolic link (this is the
              default), rather than the symbolic link itself

       -h, --no-dereference
              affect symbolic links instead of any referenced file
              (useful only on systems that can change the ownership of a
              symlink)

       --from=CURRENT_OWNER:CURRENT_GROUP
              change the ownership 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)

       --preserve-root
              fail to operate recursively on '/'

       --reference=RFILE
              use RFILE's ownership rather than specifying values RFILE
              is always dereferenced if a symbolic link.

       -R, --recursive
              operate on files and directories recursively

       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. '-P' is the default.

       -H     if a command line argument is a symbolic link to a
              directory, traverse it

       -L     traverse every symbolic link to a directory encountered

       -P     do not traverse any symbolic links

       --help display this help and exit

       --version
              output version information and exit

EXAMPLES

       chgrp staff /u
              Change the group of /u to "staff".

       chgrp -hR staff /u
              Change the group of /u and subfiles to "staff".

AUTHOR

       Written by David MacKenzie and Jim Meyering.

REPORTING BUGS

       GNU coreutils online help:
       <https://www.gnu.org/software/coreutils/>
       Report any translation bugs to
       <https://translationproject.org/team/>

COPYRIGHT

       Copyright © 2024 Free Software Foundation, Inc.  License GPLv3+:
       GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute
       it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       chown(1), chown(2)

       Full documentation <https://www.gnu.org/software/coreutils/chgrp>
       or available locally via: info '(coreutils) chgrp invocation'

COLOPHON

       This page is part of the coreutils (basic file, shell and text
       manipulation utilities) project.  Information about the project
       can be found at ⟨http://www.gnu.org/software/coreutils/⟩.  If you
       have a bug report for this manual page, see
       ⟨http://www.gnu.org/software/coreutils/⟩.  This page was obtained
       from the tarball coreutils-9.5.tar.xz fetched from
       ⟨http://ftp.gnu.org/gnu/coreutils/⟩ on 2024-06-14.  If you
       discover any rendering problems in this HTML version of the page,
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       manual page), send a mail to man-pages@man7.org

GNU coreutils 9.5              March 2024                       CHGRP(1)

Pages that refer to this page: chown(2), group(5), symlink(7)

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