Executes a command procedure or requests the command interpreter to
    read subsequent command input from a specific file or device.

    Format

      @filespec

1  –  Parameter

 filespec

    Specifies either the input device or the file for the preceding command,
    or the command procedure to be executed.

2  –  Qualifiers

    None.

3  –  Example

    $ CREATE COUNT.COM
    SHOW DEVICE/COUNTERS EIA
    SPAWN WAIT 00:01:00
    @COUNT
    <Ctrl/Z>

    $ RUN SYS$SYSTEM:LANCP
    LANCP> @COUNT

    Device Counters EIA0:
       Value  Counter
       -----  -------
       62030 Seconds since last zeroed
    19910982 Bytes received
      239192 Bytes sent
      155812 Packets received
        4348 Packets sent
    19910982 Multicast bytes received
      239140 Multicast bytes sent
      155812 Multicast packets received
        4346 Multicast packets sent
           0 Unrecognized unicast destination packets
      134311 Unrecognized multicast destination packets
           0 Unavailable station buffers
           0 Unavailable user buffers
           0 Alignment errors
           0 Frame check errors
           0 Frame size errors
           0 Frame status errors
           0 Frame length errors
           0 Frame too long errors
           0 Data overruns
           0 Send data length errors
           0 Receive data length errors
           0 Transmit underrun errors
           0 Transmit failures
           0 Carrier check failures
           0 Station failures
           0 Initially deferred packets sent
           0 Single collision packets sent
           0 Multiple collision packets sent
           0 Excessive collisions
           0 Late collisions
           0 Collision detect check failures
           1 Link up transitions (02-FEB-2019 07:25:00.00)
           0 Link down transitions
        None Time of last generic transmit error
        None Time of last generic receive error

        This example creates and runs a command procedure, COUNT.COM, that
        displays EIA device counters once a minute.