chgrp(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | USAGE | ENVIRONMENT VARIABLES | EXIT STATUS | SUMMARY OF TRUSTED SOLARIS CHANGES | FILES | ATTRIBUTES | SEE ALSO | NOTES

NAME

chgrp- Change file group ownership

SYNOPSIS

chgrp [-fhRM] group file...

DESCRIPTION

The chgrp utility sets 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 performs actions equivalent to the chown(2) function, called with the following arguments:

• The file operand is used as the path argument.

• The user ID of the file is used as the owner argument.

• The specified group ID is 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. To arbitrarily change owner IDs, this command needs the file_chown privilege, whether or not this option is in effect.

OPTIONS

-f

Force. Do not report errors.

-h

If the file is a symbolic link, change the group of the symbolic link. Without this option, the group of the file referenced by the symbolic link is changed.

-R

Recursive. chgrp descends through the directory, and any subdirectories, 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 option is specified), but no recursion takes place.

-M

chgrp processes all accessible SLDs in multilevel directories as it descends through the directory tree.

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 associated 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 GB (2³¹ bytes).

ENVIRONMENT VARIABLES

See environ(5) for descriptions of the following environment variables that affect the execution of chgrp: LC_CTYPE, LC_MESSAGES, 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.

SUMMARY OF TRUSTED SOLARIS CHANGES

The -M option processes all accessible single-level directories in multilevel directories. To arbitrarily change owner IDs, chgrp requires the file_chown privilege.

FILES

/etc/group

Local group file

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWcsu
CSI	Enabled (see NOTES)

SEE ALSO

Trusted Solaris 8 Reference Manual

chmod(1), chown(1), chown(2), fpathconf(2)

SunOS 5.8 Reference Manual

id(1M), group(4), passwd(4), system(4), attributes(5), environ(5), largefile(5)

NOTES

chgrp is CSI-enabled except for the group name.

Trusted Solaris 8  Last Revised 4 Sept 1997

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | USAGE | ENVIRONMENT VARIABLES | EXIT STATUS | SUMMARY OF TRUSTED SOLARIS CHANGES | FILES | ATTRIBUTES | SEE ALSO | NOTES