Document revision date: 30 March 2001

## OpenVMS DCL Dictionary

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## SHOW PRINTER

> Displays the current settings for a printer.

### Format

> SHOW PRINTER device-name[:]

### Parameter

> #### device-name[:]

> Specifies the name of the printer for which settings are to be displayed.

### Description

> The SHOW PRINTER command displays the settings that are currently defined for the specified printer. Settings include the following:

> Printer type Page width Page length Line termination type | Form feed Case Character translation Wrapping

> Printer settings are established by the SET PRINTER command. You must have OPER (operator) privilege to use the SET PRINTER command.

### Qualifier

> #### /OUTPUT[=filespec]

> #### /NOOUTPUT

> Controls where the output of the command is sent. By default, the output of the SHOW PRINTER command is sent to the current SYS$OUTPUT device (usually your terminal). To send the output to a file, use the /OUTPUT qualifier followed by a file specification.

> The asterisk (*) and the percent sign (%) wildcard characters are not allowed in the file specification. If you enter a partial file specification (for example, specifying only a directory), SHOW is the default file name and .LIS is the default file type.

> If you enter the /NOOUTPUT qualifier, output is suppressed.

> #### /IDSTRING

> Returns the USB printer ID string as a text string and displays it on your screen. This information appears at the end of the typical SHOW PRINTER command display.

> #### /SERIALNUM

> Returns the USB printer serial number as a text string and displays to the screen. The USB printer returns the serial number in Unicode format, and this is converted to ASCII text before being displayed.

###

#### Examples

#1
    $ SHOW PRINTER LPA0:
     Printer LPA0:, device type LP11, is online, allocated, spooled
     Error count                  0  Operations completed              880
     Owner process  "SYMBIONT_0001"  Owner UIC                       [0,0]
     Owner process ID      21C0008D  Dev Prot  S:RWLP,O:RWLP,G:RWLP,W:RWLP
     Reference count              2  Default buffer size               132
     Page width                 132  Page Length                        66
     No Carriage_return     Formfeed        Lowercase
     No Passall             No Wrap         Printall
     No Fallback            No Tab          Truncate
     No Sixels              No Bitmapped            No Polled
     Unidirectional
     Intermediate device: STAR$DUA1:
     Associated queue: LN01$PRINT

> The SHOW PRINTER command in this example displays the settings for the printer LPA0.

#2
    $ SHOW PRINTER LPA0/IDSTRING
     Printer LPA0:, device type PC printer, is online, record-oriented device,
    carriage control.
     Error count                0    Operations completed              0
     Owner process             ""    Owner UIC                  [SYSTEM]
     Owner process ID    00000000    Dev Prot          S:RWPL,O:RWPL,G,W
     Reference count            0    Default buffer size             132
     Page width               132    Page Length                      66
     No Carriage_return  Formfeed        Uppercase
     No Passall          No Wrap         No Printall
     No Fallback         No Tab          Truncate
     No Sixels           No Bitmapped            Polled
     Unidirectional
     IDString:
         MFG:            HEWLETT-PACKARD;
         MDL:            DESKJET 895C;
         CMD:            MLC,PCL,PML;
         CLASS:          PRINTER;
         DESCRIPTION:    Hewlett-Packard DeskJet 895C;
         SERN:           MX88P2V0VWGO;
         VSTATUS:                $HB0$FC0,ff,DN,IDLE,CUT;

> The SHOW PRINTER/IDSTRING command in this example displays the ID string for the printer LPA0.

#3
    $ SHOW PRINT LPA0/IDSTRING
     Printer LRA0:, device type LP11, is online, record-oriented device,
    carriage control.
     Error count                0    Operations completed              0
     Owner process             ""    Owner UIC                  [SYSTEM]
     Owner process ID    00000000    Dev Prot          S:RWPL,O:RWPL,G,W
     Reference count            0    Default buffer size             132
     Page width               132    Page Length                      66
     No Carriage_return  Formfeed        Uppercase
     No Passall          No Wrap         No Printall
     No Fallback         No Tab          Truncate
     No Sixels           No Bitmapped            No Polled
     Unidirectional
     %SYSTEM-F-DEVOFFLINE, device is not in configuration or not available

> If the device has been disconnected and marked offline, the SHOW PRINTER/IDSTRING command displays this information.

> If the attempt to read the ID string should fail (for an unknown reason other than device disconnection), the reference to the ID string appears as:

>     %SHOW-W-NOIDSTRING, ID String could not be retrieved

#4
    $ SHOW PRINT LPA0/SERIALNUM
     Printer LPA0:, device type PC printer, is online, record-oriented device,
    carriage control.
     Error count                0    Operations completed              0
     Owner process             ""    Owner UIC                  [SYSTEM]
     Owner process ID    00000000    Dev Prot          S:RWPL,O:RWPL,G,W
     Reference count            0    Default buffer size             132
     Page width               132    Page Length                      66
     No Carriage_return  Formfeed        Uppercase
     No Passall          No Wrap         No Printall
     No Fallback         No Tab          Truncate
     No Sixels           No Bitmapped            Polled
     Unidirectional
     Serial Number:      MX88P2V0VWGO

> The SHOW PRINTER/SERIALNUM command in this example displays the serial number for the printer LPA0.

> If the device has been disconnected and marked offline, the SHOW PRINTER/SERIALNUM command replaces the reference to the serial number with the following message:

>     %SYSTEM-F-DEVOFFLINE, device is not in configuration or not available

> If the ID string is not supported by the USB printer in question, the reference to the ID string will appear as:

>     %SHOW-W-NOSERIALNUM, Serial number could not be retrieved

## SHOW PROCESS

> Displays information about a process and its subprocesses.

> Requires GROUP privilege to show other processes in the same group. Requires WORLD privilege to show processes outside your group.

### Format

> SHOW PROCESS [[node-name::]process-name]

### Parameters

> #### node-name::

> The name of the node on which the specified process is running.

> You must specify a node name on the same OpenVMS Cluster on which the current process is running.

> #### process-name

> The name of the process about which information is to be displayed. The process name can have up to 15 alphanumeric characters.

> The specified process name must be in the same group as the current process.

### Description

> The SHOW PROCESS command displays information about a process and its subprocesses. If no qualifier is entered, only the following subset of information is displayed:

> > Time
> > Process terminal
> > User name and user identification code (UIC)
> > Node name
> > Process name and process identification (PID)
> > Priority
> > Default directory
> > Allocated devices
> > Number of kernel threads

> A local process name can look like a remote process name; therefore, if you specify ATHENS::SMITH, the system checks for a process named ATHENS::SMITH on the local node before checking node ATHENS for a process named SMITH.

> You also can use the /IDENTIFICATION=pid qualifier to specify a process name. If you use the /IDENTIFICATION qualifier and the process-name parameter together, the qualifier overrides the parameter. If you do not specify either the process-name parameter or the /IDENTIFICATION qualifier, information is displayed for the current process.

> If you have GROUP or WORLD privilege, you can display information about processes other than your own. With GROUP privilege you can look at other processes in your group. With WORLD privilege you can look at processes outside of your group. You must use the /IDENTIFICATION qualifier to look at processes outside of your group.

### Qualifiers

> #### /ACCOUNTING

> Shows the resources used by the process.

> #### /ALL

> Displays the basic subset of information as well as information about:

> > Accounting
> > Dynamic memory use
> > Privileges
> > Quotas
> > Shelving
> > Subprocesses

> #### /CONTINUOUS

> Displays continuously updated information about the local process in an OpenVMS environment. You cannot use the /CONTINUOUS qualifier to display information about a process on another node in a cluster environment.

> While the continuous display is running, you can press the T key to display information for threads that make up the process. If there are multiple threads, pressing the T key repeatedly cycles through all the threads.

> While the continuous display is running, you can press the V key to display a map of the pages in the virtual address space of the process.

> Each character displayed in the map represents the type of page. If the current program counter is in the page, the page type is indicated by an at sign (@). Pages locked in the working set are indicated by the letter L. Global pages are indicated by the letter G. Other valid pages in the working set are indicated by an asterisk (*).

> To terminate the continuous display, press the E key. To return to the original display, press the space bar.

> The /CONTINUOUS qualifier may not be used with the /OUTPUT qualifier.

> #### /DUMP

> Displays the image dump setting which is set or cleared by the SET PROCESS/DUMP command.

> #### /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.

> #### /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.

> #### /IDENTIFICATION=pid

> Requires GROUP or WORLD privilege to access processes other than your own.

> Displays information about the process with the specified process identification (PID). The PID is assigned by the system when the process is created. When you specify a PID, you can omit the leading zeros.

> If you specify the /IDENTIFICATION qualifier, it overrides the process-name parameter. If, in addition, you specify the /MEMORY qualifier, the PID value must be that of the current process.

> #### /INTERVAL=n

> Use with the /CONTINUOUS qualifier to update the information at the specified number of seconds.

> #### /MEMORY

> Displays the process's use of dynamic memory areas. The /MEMORY qualifier is allowed only for the current process.

> #### /OUTPUT[=filespec]

> #### /NOOUTPUT

> Controls where the output of the command is sent. By default, the output of the SHOW PROCESS command is sent to the current SYS$OUTPUT device (usually your terminal). To send the output to a file, use the /OUTPUT qualifier followed by a file specification.

> The asterisk (*) and the percent sign (%) wildcard characters are not allowed in the file specification. If you enter a partial file specification (for example, specifying only a directory), SHOW is the default file name and .LIS is the default file type.

> If you enter the /NOOUTPUT qualifier, output is suppressed.

> The /OUTPUT qualifier is incompatible with the /CONTINUOUS qualifier.

> #### /PAGE[=keyword]

> #### /NOPAGE (default)

> Controls the display of process 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), Return, Enter, Space | Get the next page of information.
> 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.

> #### /PRIVILEGES

> Displays current privileges and rights for the process. To display only privileges, also specify the /NORIGHTS qualifier. Use the SET PROCESS/PRIVILEGES command to enable process privileges on a system.

> #### /QUOTAS

> Displays, for each resource, either a quota or a limit. The values displayed for quotas reflect any quota reductions resulting from subprocess creation. The values displayed for limits reflect the resources available to a process at creation.

> #### /RAD

> Displays home resource affinity domain (RAD).

> Note that OpenVMS application support for resource affinity domains (RADs) is supported only on AlphaServer GS160 systems.

> #### /RIGHTS (default)

> #### /NORIGHTS

> Displays the current rights for the specified process. Use the /NORIGHTS qualifier with the /PRIVILEGES qualifier to suppress the rights display.

> #### /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.

> #### /SHELVING

> Displays whether the process automatically unshelves files.

> #### /SUBPROCESSES

> Displays the current subprocesses in hierarchical order.

> #### /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.

###

#### Examples

#1
    $ SHOW PROCESS OCALA::MALIK
     14-DEC-2001 15:35:19.39  User: MALIK   Process ID: 28200364
                              Node: OCALA   Process name: MALIK
    Terminal:        RTA5:
    User identifier: [VMS,MALIK]
    Base  priority:   4
    Default file spec: WORK5:[MALIK]
    Devices allocated: RTA5:

> The SHOW PROCESS command in this example is entered by the user MALIK. The system displays the subset of information for the owned process on node OCALA. The information includes the following:

> > Date and time the SHOW PROCESS command is entered
> > User name
> > Process identification (PID) number
> > Node name
> > Process name
> > Device name of the current SYS$INPUT device
> > User identification code (UIC)
> > Base execution priority
> > Default device (only for processes on the same node)
> > Default directory (only for current processes)
> > Devices allocated to the process and volumes mounted, if any

#2
    $ SHOW PROCESS/ACCOUNTING
     14-DEC-2001 14:48:01.31   User: MALIK  Process ID:   28200364
                               Node: OCALA  Process name: "MALIK"

     Accounting information:
      Buffered I/O count:      4878  Peak working set size:      844
      Direct I/O count:        1284  Peak virtual size:         1176
      Page faults:             6100  Mounted volumes:              0
      Images activated:          22
      Elapsed CPU time:      0 00:01:20.51
      Connect time:          0 04:06:03.75

> The SHOW PROCESS command in this example displays the accounting statistics for the process. The values under Peak working set size and Peak virtual size are rendered in 512-byte pages on VAX and in pagelets on Alpha.

#3
    $ SHOW PROCESS/PRIVILEGES

     14-DEC-2001 14:59:28.53  User: MALIK   Process ID:    28200364
                              Node: OCALA   Process name: "MALIK"

     Process privileges:
      GROUP                may affect other processes in same group
      TMPMBX               may create temporary mailbox
      NETMBX               may create network device

     Process rights identifiers:
      INTERACTIVE
      DIALUP

> The SHOW PROCESS command in this example displays the current privileges for the process.

#4
    $ SHOW PROCESS/QUOTAS

     14-DEC-2001 15:00:28.79   User: MALIK  Process ID:    28200364
                               Node: OCALA  Process name:  "MALIK"

     Process Quotas:
     Account name: VMS
      CPU limit:                      Infinite  Direct I/O limit:       6
      Buffered I/O byte count quota:     17904  Buffered I/O limit:     6
      Timer queue entry quota:              10  Open file quota:       31
      Paging file quota:                 24945  Subprocess quota:       8
      Default page fault cluster:           64  AST limit:             14
      Enqueue quota:                        30  Shared file limit:      9
      Max detached processes:               11  Max active jobs:       14

> The SHOW PROCESS command in this example displays the available quotas and limits. The value under Paging file quota is rendered in 512-byte pages on VAX and in pagelets on Alpha.

#5
    $ SHOW PROCESS/SUBPROCESSES

     14-DEC-2001 15:44:59.39  User: MALIK  Process ID:   28200364
                              Node: OCALA  Process name: "MALIK_1"

     Processes in this tree:

     MALIK
       MALIK_1 (*)
         MALIK_2

> The SHOW PROCESS command in this example shows the current process tree. The current process is indicated by the asterisk (*). Processes both below and above the current process are shown.

#6
    $ SHOW PROCESS/CONTINUOUS BOB

                               Process BOB                       12:26:53

        State               CUR              Working set              269

        Cur/base priority   8/4              Virtual memory          1713

        Current PC          7FFEE07E         CPU time         00:00:13.82

        Current PSL         03C00000         Direct I/O               246

        Current user SP     7FF785A4         Buffered I/O             646

        PID                 226006C0         Page faults             3417

        UIC                 [VMS,BOB]        Event flags         C8000007
                                                                 C0000000
        SYS$SYSROOT:[SYSEXE]SHOW.EXE

> In this example, the /CONTINUOUS qualifier causes the display of information about process BOB to be updated continuously. Note that the Virtual memory heading appears on VAX and the Virtual pages heading appears on Alpha; both indicate the virtual memory used as a number of CPU-specific pages. The value displayed for Working set is also a number of CPU-specific pages.

#7
    $ SHOW PROCESS/MEMORY

     14-DEC-2001 14:59:04.48   User: MALIK  Process ID:   28200364
                               Node: OCALA  Process Name: "MALIK"

     Process Dynamic Memory Area
         Current Size (bytes)    25600   Current Total Size (pages)    50
         Free Space (bytes)      22698   Space in Use (bytes)        2902
         Size of Largest Block   22496   Size of Smallest Block        15
         Number of Free Blocks       7   Free Blocks LEQU 32 Bytes      3

> The SHOW PROCESS command in this example displays the use of dynamic memory areas for the current process, MALIK. These areas are described as follows:

> Current size | Displays the current size in bytes and pages on VAX (512-byte pagelets on Alpha) of each dynamic memory area.
> Free space | Displays the amount of free space in each dynamic memory area.
> Space in use | Displays the amount of space currently allocated from each area.
> Largest block | Displays the size of the largest contiguous area in each pool area.
> Smallest block | Displays the size of the smallest free block in each pool area.
> Free blocks | Displays the total number of free blocks in each pool area. The size of this number is a measure of pool fragmentation.
> Blocks LEQU 32 (VAX) Blocks LEQU 64 (Alpha) | Displays the number of free blocks that are 32 bytes or shorter on VAX or 64 bytes or shorter on Alpha. This number is another measure of pool fragmentation, because while allocation of these small blocks is unlikely, they contribute to the allocation time whenever an allocation request is made.

#8
    $ SHOW PROCESS OCALA::MALIK
     14-DEC-2001 15:35:19.39  User: MALIK   Process ID: 28200364
                              Node: OCALA   Process name: MALIK
    Terminal:          RTA5:
    User identifier:   [VMS,MALIK]
    Base  priority:    4
    Default file spec: WORK5:[MALIK]
    Devices allocated: RTA5:

> The SHOW PROCESS command in this example displays the basic subset of information for the process MALIK on node OCALA.

#9
    $ SHOW PROCESS/SHELVING LYONS
    15-JUNE-2001  10:07:25.11   User: LYONS       Process ID:  20206A50
                                Node: BANANA      Process name: "LYONS"
    Auto-unshelve: on

> The SHOW PROCESS command in this example shows that the LYONS process automatically unshelves files.

#10
    $ SHOW PROCESS/DUMP RALSTON
    31-DEC-2001 10:38:32.48   User: RALSTON       Process ID:   20C0011B
                              Node: AAAAAA        Process name: "_RTA1:"
    Image Dump: on

> The SHOW PROCESS command in this example shows that the image dump capability for the RALSTON process is enabled. This causes the contents of the address space to be written to the file named SYS$LOGIN:(image-name).DMP (where the image name is the same as the file name) when an image terminates due to an unhandled error.

> See the SET PROCESS/DUMP command for additional information.

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