PUTDGRP(1M) Maintenance Commands PUTDGRP(1M)


NAME


putdgrp - edits device group table

SYNOPSIS


putdgrp [-d] dgroup [device]...


DESCRIPTION


putdgrp modifies the device group table. It performs two kinds of
modification. It can modify the table by creating a new device group or
removing a device group. It can also change group definitions by adding
or removing a device from the group definition.


When the command is invoked with only a dgroup specification, the command
adds the specified group name to the device group table if it does not
already exist. If the -d option is also used with only the dgroup
specification, the command deletes the group from the table.


When the command is invoked with both a dgroup and a device
specification, it adds the given device name(s) to the group definition.
When invoked with both arguments and the -d option, the command deletes
the device name(s) from the group definition.


When the command is invoked with both a dgroup and a device specification
and the device group does not exist, it creates the group and adds the
specified devices to that new group.

OPTIONS


The following options are supported:

-d
Delete the group or, if used with device, delete the device from a
group definition.


OPERANDS


The following operands are supported:

dgroup
Specify a device group name.


device
Specify the pathname or alias of the device that is to be added
to, or deleted from, the device group.


EXIT STATUS


The following exit values are returned:

0
Successful completion.


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


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


3
If executed with the -d option, indicates that an entry in the
device group table for the device group dgroup does not exist and
so cannot be deleted. Otherwise, indicates that the device group
dgroup already exists and cannot be added.


4
If executed with the -d option, indicates that the device group
dgroup does not have as members one or more of the specified
devices. Otherwise, indicates that the device group dgroup already
has one or more of the specified devices as members.


EXAMPLES


Example 1: Adding a new device group.




The following example adds a new device group:


example# putdgrp floppies


Example 2: Adding a device to a device group.




The following example adds a device to a device group:


example# putdgrp floppies diskette2


Example 3: Deleting a device group.




The following example deletes a device group:


example# putdgrp -d floppies


Example 4: Deleting a device from a device group.




The following example deletes a device from a device group:


example# putdgrp -d floppies diskette2


FILES


/etc/dgroup.tab


SEE ALSO


listdgrp(1M), putdev(1M), attributes(5)


July 5, 1990 PUTDGRP(1M)