Copyright Digital Equipment Corp. All rights reserved.
Qualifiers
/ALLOCATED
Displays all devices currently allocated to processes.
If you specify a device name, the characteristics of only that
device are displayed. If the device is not currently allocated,
the command displays a message indicating that there is no such
device. If you specify a generic device name, the characteristics
of all allocated devices of that type are displayed.
/BRIEF
/BRIEF (default)
Displays brief information about the specified devices.
/BITMAP
/BITMAP ddcu:
Displays information regarding minicopy or HBMM (Host-Based
Minimerge) bitmaps for the given shadow set;
Note that the SHOW DEVICES/FULL ddcu: display also displays
status to indicate that bitmaps are active on the device.
/EXACT
Use with the /PAGE=SAVE and /SEARCH qualifiers to specify a
search string that must match the search string exactly and must
be enclosed with quotation marks (" ").
If you specify the /EXACT qualifier without the /SEARCH
qualifier, exact search mode is enabled when you set the search
string with the Find (E1) key.
/FILES
Requires SYSPRV (system privilege) or BYPASS privileges to list
read-protected files.
Displays a list of the names of all files open on a volume and
their associated process name and process identification (PID).
The specified device must be a mounted Files-11 volume. If the
specified volume is a multivolume set, the files on each volume
in the set are listed.
NOTE
The SHOW DEVICES/FILES command does not support defaults
for nonspecified portions of device names. You must supply
a complete device specification when using the /FILES
qualifier.
If the /SYSTEM qualifier is also specified, only the names of
installed files and files opened by the system are displayed.
Files opened by the system are those that have been opened
without the use of an ancillary control process (ACP), such
as INDEXF.SYS and QUOTA.SYS, as well as system files such as
JBCSYSQUE.EXE and SYSMSG.EXE.
If the /NOSYSTEM qualifier is specified, only those files opened
by processes are displayed. To list files opened by a process in
your group, your process must have at least GROUP privilege. If
the process is not in your group, you need WORLD privilege.
If neither the /SYSTEM nor the /NOSYSTEM qualifier is specified,
the names of all files currently opened on the system are
displayed.
If a file is read-protected from your user identification code
(UIC), the "No privilege" message is displayed instead of the
file name. You must have SYSPRV (system privilege) privilege or
BYPASS privilege to display the file name.
A space in place of a file name represents a work file (such as
a temporary edit file) not entered in any directory. To display
temporary file names, you must have BYPASS privilege in addition
to GROUP or WORLD privilege.
Do not use the /FILES qualifier with the /ALLOCATED, /BRIEF,
/FULL, or /MOUNTED qualifier. The functions of the /FILES
qualifier and these qualifiers are mutually exclusive.
/FULL
Displays a complete list of information about the devices,
as appropriate, except for rebuild status. You must use the
/REBUILD_STATUS qualifier to get that information.
Note that you cannot use the /UNITS or /SIZE qualifier with the
/FULL qualifier.
The display will be in blocks or bytes, depending on the current
system default setting. You can use SHOW PROCESS/UNITS to display
the current default. To change the default, execute the DCL
command SET PROCESS/UNITS=BYTES or SET PROCESS/UNITS=BLOCKS.
For more information about fields related to Dissimilar Device
Shadowing (DDS) or Dynamic Volume Expansion (DVE) in the display,
see the discussion of these topics in the VSI OpenVMS System
Manager's Manual.
/HIGHLIGHT
/HIGHLIGHT[=keyword]
Use with the /PAGE=SAVE and /SEARCH qualifiers to specify the
type of highlighting you want when a search string is found. When
a string is found, the entire line is highlighted. You can use
the following keywords: BOLD, BLINK, REVERSE, and UNDERLINE. BOLD
is the default highlighting.
/MOUNTED
Displays all devices that currently have volumes mounted on them.
If you specify a device name, only the characteristics of that
device are displayed; however, if the device is not currently
mounted, the command issues a message indicating there is no such
device. If you specify a generic device name, the characteristics
of all such devices that currently have volumes mounted are
displayed.
/MULTIPATH
Displays all devices that are currently multipath sets.
If you specify a device name, only the characteristics of that
device are displayed; however, if the device is not a multipath
set, the command issues a message indicating there is no such
device. If you specify a generic device name, the characteristics
of all such devices that are currently multipath sets are
displayed.
/OUTPUT
/OUTPUT[=filespec]
/NOOUTPUT
Controls where the output of the command is sent. If you do
not enter the qualifier, or if you enter the /OUTPUT qualifier
without a file specification, the output is sent to the current
process default output stream or device, identified by the
logical name SYS$OUTPUT.
If you enter the /OUTPUT qualifier with a partial file
specification (for example, specifying only a directory), SHOW
is the default file name and .LIS the default file type. If you
enter a file specification, it may not include the asterisk (*)
and the percent sign (%) wildcard characters.
If you enter the /NOOUTPUT qualifier, output is suppressed.
/PAGE
/PAGE[=keyword]
/NOPAGE (default)
Controls the display of device information on the screen.
You can use the following keywords with the /PAGE qualifier:
CLEAR_SCREEN Clears the screen before each page is displayed.
SCROLL Displays information one line at a time.
SAVE[=n] Enables screen navigation of information, where n
is the number of pages to store.
The /PAGE=SAVE qualifier allows you to navigate through screens
of information. The /PAGE=SAVE qualifier stores up to 5 screens
of up to 255 columns of information. When you use the /PAGE=SAVE
qualifier, you can use the following keys to navigate through the
information:
Key Sequence Description
Up arrow key, Ctrl/B Scroll up one line.
Down arrow key Scroll down one line.
Left arrow key Scroll left one column.
Right arrow key Scroll right one column.
Find (E1) Specify a string to find when the
information is displayed.
Insert Here (E2) Scroll right one half screen.
Remove (E3) Scroll left one half screen.
Select (E4) Toggle 80/132 column mode.
Prev Screen (E5) Get the previous page of information.
Next Screen (E6), Get the next page of information.
Return, Enter, Space
F10, Ctrl/Z Exit. (Some utilities define these
differently.)
Help (F15) Display utility help text.
Do (F16) Toggle the display to oldest/newest
page.
Ctrl/W Refresh the display.
The /PAGE qualifier is not compatible with the /OUTPUT qualifier.
/REBUILD_STATUS
Tells you whether volumes need rebuilding.
You may need to rebuild a volume if the volume was improperly
dismounted. Volumes are improperly dismounted when, for example,
the system crashes.
For each volume, SHOW DEVICES/REBUILD_STATUS returns one of these
values:
Value Meaning
Yes Rebuild needed.
No Rebuild not needed.
Not applicable You cannot rebuild this volume. This value is
returned if, for example, the volume is not a
disk, or the volume is write-locked.
Information Rebuild information is unavailable. This value
unavailable is returned when, for example, the volume is
not mounted, or mount verification is taking
place.
To rebuild a volume, either:
o Use SET VOLUME/REBUILD
o Dismount the volume, then mount the volume again using
MOUNT/REBUILD
You cannot use the /REBUILD_STATUS qualifier with any other SHOW
DEVICES qualifiers, except /OUTPUT.
/SEARCH
/SEARCH="string"
Use with the /PAGE=SAVE qualifier to specify a string that you
want to find in the information being displayed. Quotation marks
are required for the /SEARCH qualifier, if you include spaces in
the text string.
You can also dynamically change the search string by pressing the
Find key (E1) while the information is being displayed. Quotation
marks are not required for a dynamic search.
/SIZE
/SIZE=keyword
Allows you to override the current default specified by SET
PROCESS/UNITS so that you can display disk free space in your
choice of blocks or bytes. (/SIZE is functionally equivalent to
/UNITS.)
The following keywords are valid with the /SIZE qualifier:
BLOCKS, BYTES.
If you specify /SIZE with no keyword, the default value is not
changed.
Note that you cannot use the /SIZE qualifier with the /FULL
qualifier.
/SYSTEM
/SYSTEM
/NOSYSTEM
Controls whether the names of installed files and files opened
by the system are displayed. Files opened by the system are those
that have been opened without the use of an ancillary control
process (ACP), such as INDEXF.SYS and QUOTA.SYS.
If you specify the /NOSYSTEM qualifier with the /FILES qualifier,
only files opened by processes are displayed. If you omit both
the /SYSTEM and /NOSYSTEM qualifiers and specify the /FILES
qualifier, the names of all files currently open on the system
are displayed.
You can use this qualifier only with the /FILES qualifier. See
the description of the /FILES qualifier for more details.
/UNITS
/UNITS=keyword
Allows you to override the current default specified by SET
PROCESS/UNITS so that you can display disk free space in your
choice of blocks or bytes. (/UNITS is functionally equivalent to
/SIZE.)
The following keywords are valid with the /UNITS qualifier:
BLOCKS, BYTES.
If you specify /UNITS with no keyword, the default value is not
changed.
Note that you cannot use the /UNITS qualifier with the /FULL
qualifier.
/WINDOWS
Displays the window count and total size of all windows for files
open on a volume. The file name and related process name and
process identification (PID) are also displayed. The letter C
in a display indicates that the file is open with "cathedral
windows" (segmented windows).
/WRAP
/WRAP
/NOWRAP (default)
Use with the /PAGE=SAVE qualifier to limit the number of columns
to the width of the screen and to wrap lines that extend beyond
the width of the screen to the next line.
The /NOWRAP qualifier extends lines beyond the width of the
screen and can be seen when you use the scrolling (left and
right) features provided by the /PAGE=SAVE qualifier.