CHGRP(1)                System General Commands Manual                CHGRP(1)

NAME
     chgrp - change group

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

DESCRIPTION
     chgrp sets the group ID of the specified files.

     The options are as follows:

     -c, --change
             Report when a change is successfully done.

     -f, --quiet, --silent
             The force option ignores errors, except for usage errors.

     -H      If the -R, --recursive option is specified, symbolic links on the
             command line are followed.  (Symbolic links encountered in the
             tree traversal are not followed.)

     -h      Change the group ID of the specified symbolic link.  The -h and
             -R options are mutually exclusive.

     -L      If the -R option is specified, all symbolic links are followed.

     -P      If the -R option is specified, no symbolic links are followed.

     -R      Change the group ID for the file hierarchies rooted in the files
             instead of just the files themselves.

     -v, --verbose
             Provide a status for each file (same as -c option and not -f
             option being specified).

     -n, --no-preserve-root
             This is the default action. The '/' (root) directory is not
             treated specially.

     -p, --preserve-root
             Do not allow resursive operation on the '/' (root) directory.

     The -H, -L, and -P options are ignored unless the -R option is specified.
     In addition, these options override each other and the command's actions
     are determined by the last one specified.

     The group operand can be either a group name from the group database, or
     a numeric group ID.  If a group name is also a numeric group ID, the
     operand is used as a group name.

     The user invoking chgrp must belong to the specified group and be the
     owner of the file, or be the superuser.

     The chgrp utility exits 0 on success or >0 if an error occurred.

FILES
     None.

SEE ALSO
     chown(2), fts(3), chown(8)

STANDARDS
     The chgrp utility is POSIX 1003.2 and SUS compatible.

Interix                         June, 11, 2009                         Interix