getdgrp - lists device groups which contain devices that match
criteria
/usr/bin/getdgrp [-ael] [criteria]... [dgroup]...
getdgrp generates a list of device groups that contain
devices matching the given criteria. The criteria is given in the form of
expressions.
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.
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.
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.
/etc/device.tab
/etc/dgroup.tab