OnWorks favicon

dntask - Online in the Cloud

Run dntask in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command dntask that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



dntask - Execute VMS command procedures


dntask [options] command-procedure
[-biVh] [-t timeout]


dntask runs command procedures on a remote VMS system.
It takes advantage of the ability of the TASK object in DECnet to execute an arbitrary
command procedure located in the users' login directory. The remote command procedure
should output to SYS$NET rather than SYS$OUTPUT and (if interactive) read it's input also
from SYS$NET.
The VMS equivalent of the (non-interactive version) command would be

TYPE node::"TASK=command-procedure"

For some example command procedures see the tasks directory of the source distribution.
show_system.com is a non-interactive task that simply displays the output of the VMS "SHOW
SYSTEM" command on standard output. interactive.com is an interactive task that allows
you to enter DCL commands to be executed on the host VMS system. Be careful which commands
you enter because they will expect input to come from the network connection, for instance
programs that do screen orientated input or output will almost certainly not work.
Task names can be up to 16 characters in length because that's the limit on DECnet object


-b Send the output in binary mode. By default the output from the DECnet task is
assumed to be records. This option sends the data "as is" so you can put commands
like BACKUP in the task and backup to your Linux box.

-i Interact with the command procedure. The command procedure must be written to be
interactive by reading from and writing to SYS$NET. Specifying -i for a non-
interactive command procedure will cause dntask to time-out waiting for input. Not
specifying -i for an interactive command procedure will cause it to exit
prematurely at the VMS end.

-t timeout
Specifies the timeout in seconds for interactive command procedures. If no input
has been received from either standard input or the VMS end in this time then
dntask will exit. The default is 60 seconds. If the value 0 is given then dntask
will wait forever (or until you kill it).

-T connect timeout
Specifies the maximum amount of time the command will wait to establish a
connection with the remote node. a 0 here will cause it to wait forever. The
default is 60 seconds

-h -? Displays help for using the command.

-V Show the version of the tools package that dntask comes from.


The command procedure that you write MUST ALWAYS write something to SYS$NET or you will
get a "connection refused" message. This is a limitation with DECnet objects.
eg. If you write a task to start a remote DECterm it would look something like this:

$ remnode=f$element(0, ":", "''f$trnlnm("sys$rem_node")'")
$ set display/create/node='remnode'
$ create/term/detach
$ def/nolog sys$output sys$net
$ write sys$output "DECterm started on ''remnode'"
$ exit

The "write" command near the end is essential.


dntask 'myvax::show_system'

dndir -i 'tramp"christine pjc123"::interactive'

dndir -i 'tramp"christine -"::interactive'

Specifying "-" in the password field will prompt for the password.

Use dntask online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    itop - ITSM  CMDB OpenSource
    itop - ITSM CMDB OpenSource
    IT Operations Portal: a complete open
    source, ITIL, web based service
    management tool including a fully
    customizable CMDB, a helpdesk system and
    a document man...
    Download itop - ITSM CMDB OpenSource
  • 2
    Clementine is a multi-platform music
    player and library organizer inspired by
    Amarok 1.4. It has a fast and
    easy-to-use interface, and allows you to
    search and ...
    Download Clementine
  • 3
    ATTENTION: Cumulative update 2.4.3 has
    been released!! The update works for any
    previous 2.x.x version. If upgrading
    from version v1.x.x, please download and
    Download XISMuS
  • 4
    Modular headtracking program that
    supports multiple face-trackers, filters
    and game-protocols. Among the trackers
    are the SM FaceAPI, AIC Inertial Head
    Tracker ...
    Download facetracknoir
  • 5
    PHP QR Code
    PHP QR Code
    PHP QR Code is open source (LGPL)
    library for generating QR Code,
    2-dimensional barcode. Based on
    libqrencode C library, provides API for
    creating QR Code barc...
    Download PHP QR Code
  • 6
    Freeciv is a free turn-based
    multiplayer strategy game, in which each
    player becomes the leader of a
    civilization, fighting to obtain the
    ultimate goal: to bec...
    Download Freeciv
  • More »

Linux commands