Displays the values of system parameters in the SYSGEN work area, plus
  the minimum, maximum, and default values of the parameters, and their
  units of measure.  Can also display the I/O driver database.

  Format:

    SHOW parameter-name
    SHOW /parameter-type
    SHOW /DEVICE=driver-name
    SHOW /HEX parameter-name
    SHOW /HEX/parameter-type

Additional information available:

parameter-nameQualifiers

  Name of a system parameter.  Use the SHOW /NAMES command to obtain the
  names of all the system parameters.

Additional information available:

/ACP/ADAPTER/ALL/CLUSTER/CONFIGURATION/DEVICE
/DRIVER/DYNAMIC/GEN/HEX/JOB/LGI/MAJOR
/MULTIPROCESSING/NAMES/PQL/RMS/SCS/SPECIAL
/STARTUP/SYS/TTY/UNIBUS

 /ACP

  Displays the system parameters that affect the disk and magnetic tape
  ancillary control processes (ACP's).

 /ADAPTER

  Displays a list of adapters and what is connected to each nexus.

 /ALL

  Displays all the system parameters.

 /CLUSTER

  Displays the parameters that are associated with a VAX cluster.

 /CONFIGURATION

  Shows devices by name, number of units, nexus number, adapter type,
  as well as CSR and vectors addresses. Requires CMEXEC privilege.

  Also accepts /ADAPTER = adapter-spec, /OUTPUT = file-spec, as well as
  /COMMAND_FILE, which formats all the devices as CONNECT commands to
  allow a complete re-configuration of a system's UNIBUS without the use of
  AUTOCONFIGURE.

 /DEVICE[=device-driver]

  Displays the device data base associated with a particular I/O device
  driver; if no device driver is specified, the database for all drivers
  is displayed. Requires CMEXEC privilege.

 /DRIVER[=device-driver]

  A short form of the /DEVICE display, only giving the beginning and
  ending addresses of the drivers.

 /DYNAMIC

  Displays the system parameters that can be modified in the active running
  system.  See WRITE ACTIVE for how to modify these parameters.

 /GEN

  Displays the structure-generating parameters and other parameters that
  take effect only at boot time.

 /HEX

  Displays the values in base 16.

 /JOB

  Displays the job controller parameters.

 /LGI

  Displays all login parameters.

 /MAJOR

  Displays the major parameters.  These are the parameters that are most
  likely to require adjustment for individual installations.

 /MULTIPROCESSING

  Displays  the  parameters  that  are  associated  with  symmetric
  multiprocessing (SMP).

 /NAMES

  Displays just the names of all the parameters.

 /PQL

  Displays the parameters that are used as the minimum and default for
  process creation limits and quotas.

 /RMS

  Displays the parameters that are used as the system-wide defaults for
  VMS RMS.

 /SCS

  Displays the parameters that are associated with the system communications
  services.

 /SPECIAL

  Displays all parameters that are reserved for DIGITAL use only.

 /STARTUP

  Displays the name of the current site-independent startup
  command procedure.

 /SYS

  Displays the parameters  that  are  associated  with  overall  system
  operation.

 /TTY

  Displays the parameters that are associated with the terminal driver.

 /UNIBUS

  Tests every word in UNIBUS I/O space and returns a list of addresses
  that respond and the value that was read. Note that this command is
  useful for debugging UNIBUS autoconfigure problems, but it is not
  recommended for use on a running system. All unibus adapters are the
  default, /ADAPTER=adapter-spec can be  specified.  Requires  CMKRNL
  privilege.