GETDEV(8) Maintenance Procedures GETDEV(8)

NAME

getdev - lists devices based on criteria

SYNOPSIS

getdev [-ae] [criteria]... [device]...

DESCRIPTION

getdev generates a list of devices that match certain criteria. The
criteria includes a list of attributes (given in expressions) and a list
of devices. If no criteria are given, all devices are included in the
list.


Devices must satisfy at least one of the criteria in the list unless the
-a option is used. Then, only those devices which match all of the
criteria in a list will be included.


Devices which are defined on the command line and which match the
criteria are included in the generated list. However, if the -e option is
used, the list becomes a set of devices to be excluded from the list. See
OPTIONS and OPERANDS.

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 devices which follows on the command
line should be excluded from the list generated by this command.
Without the -e the named devices are included in the generated
list. The flag has no effect if no devices are defined.

OPERANDS

The following operands are supported:

criteria
Defines the criteria that a device must match to be included
in the generated list. criteria is specified by expressions.

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

attribute=value
Selects all devices whose attribute
attribute is defined and is equal to
value.


attribute!=value
Selects all devices whose attribute
attribute is defined and does not equal
value.


attribute:*
Selects all devices which have the
attribute attribute defined.


attribute!:*
Selects all devices which do not have the
attribute attribute defined.

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


device
Defines the devices which should be included in the generated
list. This can be the pathname of the device or the device
alias.

EXIT STATUS

The following exit values are returned:

0
Successful completion.


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


2
Device table could not be opened for reading.

FILES

/etc/device.tab

SEE ALSO

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


July 5, 1990 GETDEV(8)