GETDGRP(8) Maintenance Commands and Procedures GETDGRP(8)

NAME

getdgrp - lists device groups which contain devices that match
criteria

SYNOPSIS

/usr/bin/getdgrp [-ael] [criteria]... [dgroup]...

DESCRIPTION

getdgrp generates a list of device groups that contain devices
matching the given criteria. The criteria is given in the form of
expressions.

OPTIONS

The following options are supported:

-a
Specifies that a device must match all criteria to be included
in the list generated by this command. The option has no effect
if no criteria are defined.


-e
Specifies that the list of device groups on the command line
should be excluded from the list generated by this command.
Without the -e option the named device groups are included in
the generated list. The flag has no effect if no devices are
defined.


-l
Specifies that all device groups (subject to the -e option and
the dgroup list) should be listed even if they contain no valid
device members. This option has no affect if criteria is
specified on the command line.

OPERANDS

The following operands are supported:

criteria
Defines criteria that a device must match before a device
group to which it belongs can be included in the
generated list. Specify criteria as an expression or a
list of expressions which a device must meet for its
group to be included in the list generated by getdgrp.
If no criteria are given, all device groups are included
in the list.

Devices must satisfy at least one of the criteria in the
list. However, the -a option can be used to define that
a "logical and" operation should be performed. Then,
only those groups containing devices which match all of
the criteria in a list will be included.

There are four possible expressions types which the
criteria specified in the criteria argument may follow:

attribute=value
Selects all device groups with a
member whose attribute attribute is
defined and is equal to value.


attribute!=value
Selects all device groups with a
member whose attribute attribute is
defined and does not equal value.


attribute:*
Selects all device groups with a
member which has the attribute
attribute defined.


attribute!:*
Selects all device groups with a
member which does not have the
attribute attribute defined.

See putdev(8) for a complete listing and description of
available attributes.


dgroup
Defines a set of device groups which should be included
in or excluded from the generated list. Device groups
that are defined and which contain devices matching the
criteria are included.

If the -e option is used, this list defines a set of
device groups to be excluded. When the -e option is used
and criteria is also defined, the generated list will
include device groups containing devices which match the
criteria and are not in the command line list.

EXIT STATUS

The following exit values are returned:

0
Successful completion of the task.


1
Command syntax was incorrect, invalid option was used, or an
internal error occurred.


2
Device table or device group table could not be opened for
reading.

FILES

/etc/device.tab


/etc/dgroup.tab

SEE ALSO

attributes(7), devattr(8), getdev(8), putdev(8), putdgrp(8)

August 13, 2023 GETDGRP(8)