chgrp(1) BSD General Commands Manual chgrp(1)
NAME
chgrp -- change group
SYNOPSIS
chgrp [-fhv] [-R [-H | -L | -P]] group file ...
DESCRIPTION
The chgrp utility sets the group ID of the file named by each file oper-
and to the group ID specified by the group operand.
The following options are available:
-f The force option ignores errors, except for usage errors and
doesn't query about strange modes (unless the user does not have
proper permissions).
-H If the -R option is specified, symbolic links on the command line
are followed. (Symbolic links encountered in the tree traversal
are not followed).
-h If the file is a symbolic link, the group ID of the link itself
is changed rather than the file that is pointed to.
-L If the -R option is specified, all symbolic links are followed.
-P If the -R option is specified, no symbolic links are followed.
This is the default. Use -h to change the group ID of a symbolic
link.
-R Change the group ID for the file hierarchies rooted in the files
instead of just the files themselves.
-v Cause chgrp to be verbose, showing files as the group is modi-
fied.
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 op-
erand 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 super-user.
DIAGNOSTICS
The chgrp utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
In previous versions of this system, symbolic links did not have groups.
The -v option is non-standard and its use in scripts is not recommended.
FILES
/etc/group group ID file
SEE ALSO
chown(2), fts(3), group(5), passwd(5), symlink(7), chown(8)
STANDARDS
The chgrp utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compat-
ible.
BSD March 31, 1994 BSD
Mac OS X 10.6 - Generated Thu Sep 17 20:07:18 CDT 2009