Parameters

subcommand

   Defines the specific operation to be performed.


filespec

   Specifies the device name, directory, and file name for the
   EXCHANGE input or output device. It has the following general
   form:

   device:[directory]filename.filetype;version

   device:    The device name can be either a standard OpenVMS
              device name of the form ddcu: or a logical name that
              translates to an OpenVMS device name. If the device
              field is omitted for a reference, the current default
              device is assumed. When a virtual device is mounted, a
              name is created for the virtual device and is used as
              the device name in subsequent EXCHANGE commands.

   [directory]The syntax of the directory subfield is volume
              specific.

   filename   The name field file specification for an input or
              output file. The exact format allowed for the file
              name is dependent on the volume format qualifier used.

   filetype   The extension field of the file specification.

   version    The version number of the file, if supported by the
              volume type.