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Sends messages to users or terminals within the VMScluster.
Format
SEND [/qualifiers] destination[,...] [message]
Command Qualifiers Defaults
/BOTTOM
/CLUSTERWIDE /NOCLUSTERWIDE
/LOG /NOLOG
/NODE=node
/PROMPT /PROMPT
/TERMINAL=terminal
/TOP
/USER=user
/WAIT[=time] /NOWAIT
destination
Specifies one or more users or terminals to receive the
message(s) being sent. The following destination formats are
supported:
user The name of a user on the DECnet node to which you
are connected.
terminal The name of a terminal on the DECnet node to which
you are connected.
node::user The name of a user on another DECnet node in the
VMScluster.
node::terminal The name of a terminal on another DECnet node in
the VMScluster.
message
Specifies the text of the message to send. If this parameter is
omitted, you will be prompted for one or more messages.
NOTE
DCL uppercases everything on the command line that is not
surrounded by double quote (") characters, so you should
use double quotes if you want to preserve the case of your
message.
/BOTTOM
Specifies that the message should be written to the bottom line
of the destination terminal(s). This qualifier has no effect on
messages sent to terminals without the DEC_CRT characteristic.
/CLUSTERWIDE
/CLUSTERWIDE
/NOCLUSTERWIDE (D)
Controls whether a message should be sent to all DECnet nodes
of the VMScluster. For a terminal destination, this means
questioning all of the nodes of the VMScluster to determine the
DECnet node on which the terminal is located.
This qualifier is positional, so it has a different effect
depending upon where it appears within the command line. If it
appears directly after the SEND command, then it applies to all
destinations. If it appears directly after a destination, then it
applies to that destination only.
/LOG
/LOG
/NOLOG (D)
Controls whether information is displayed about the status of
the command and/or the messages sent. For user destinations, the
information displayed includes:
o the number of terminals that received the message;
o the number of terminals for which SEND timed-out trying to
send the message (see /WAIT for more information);
o the number of terminals for which SEND messages have been
disabled (see Disabling for more information).
This qualifier is positional, so it has a different effect
depending upon where it appears within the command line. If it
appears directly after the SEND command, then it applies to all
destinations. If it appears directly after a destination, then it
applies to that destination only.
/NODE
/NODE=node
Specifies the DECnet node name that should appear in messages
sent to remote DECnet nodes. CMKRNL privilege is required to use
this qualifier.
/PROMPT
/PROMPT (D)
/NOPROMPT
Controls whether a prompt is displayed when reading messages to
be sent. The prompt will either take the form ``name:'' for users
or terminals on the same DECnet node, or ``(node)name:'' for
users or terminals on another DECnet node. The first destination
specified on the command line is used to build the prompt,
though the message text entered will be sent to all destinations
specified. If an error is detected while sending messages to this
destination, then a new prompt will be generated based on the
next destination, etc.
NOTE
You can spawn a subprocess by starting the line with $.
/TERMINAL
/TERMINAL=terminal
Specifies the terminal name that should appear in messages sent
to users on the same DECnet node. CMKRNL privilege is required to
use this qualifier.
/TOP
Specifies that the message should be written to the top line
of the destination terminal(s). This qualifier has no effect on
messages sent to terminals without the DEC_CRT characteristic.
/USER
/USER=user
Specifies the username that should appear in messages sent.
CMKRNL privilege is required to use this qualifier.
/WAIT
/WAIT[=time]
/NOWAIT (D)
Specifies the amount of time (in seconds) to allow for a message to
be sent. By default, SEND will wait for 5 seconds before ``timing
out'' on a particular terminal. 5 seconds is the minimum amount of
time to wait. /WAIT, or /WAIT=0, means to wait indefinitely for the
message to be sent.
You can turn off receipt of SEND messages with the following DCL command: $ SET BROADCAST=NOUSER1 which disables broadcast messages from the USER1 broadcast class, the broadcast class used by SEND.
You can spawn a subprocess from within SEND by specifying $ as the first character of message text. If $ is the only thing on the line, then a subprocess will be created running DCL and control will be passed to that subprocess. If a command appears after the $, then the command will be executed in a subprocess and control will be returned to SEND once the command is finished.
1.$ SEND SMITHJB "Hello"
This example shows how to send a single message to a user
on the same DECnet node. The message displayed on SMITHJB's
terminal(s) will look like:
user(terminal) - Hello
where ``user'' is your username and ``terminal'' is your
terminal name.
2.$ SEND WKUVX1::SMITHJB "Hello"
This example shows how to send a single message to a user on
a different DECnet node. The message displayed on SMITHJB's
terminal(s) will look like:
(node)user - Hello
where ``node'' is the name of the DECnet node to which you are
connected and ``user'' is your username. This message format
would not be used if you were logged into WKUVX1. Messages to
``node::user'' where ``node'' is the name of the DECnet node
to which you are connected are treated the same as messages to
``user.''
3.$ SEND SMITHJB
SMITHJB: Hello
SMITHJB: How are you?
This example shows how to send multiple messages to a user
on the same node. SEND will keep prompting for more messsages
until a blank line or Ctrl-Z is read. The prompt for sending
a message to a user or terminal on a remote node looks like
(node)name:.
4.$ SEND SMITHJB
SMITHJB: Hello
%SEND-E-NOTLOGIN, User SMITHJB is not logged in
$
This example demonstrates the error message that is displayed
when you attempt to send a message to a user that is not logged
in.
5.$ SEND SMITHJB
SMITHJB: Hello
%SEND-E-NOTRCVING, SMITHJB is not receiving messages
$
This example demonstrates the error message that is displayed
when you attempt to send a message to a user or terminal that
has disabled SEND messages. You can disable SEND messages with
the following DCL command:
$ SET BROADCAST=NOUSER1
6.$ SEND SMITHJB/LOG
SMITHJB: Hello
%SEND-S-SENT, SMITHJB 1 terminals received, 0 timed out,0 not receiving
This example demonstrates the information that is displayed as
a result of the /LOG qualifier.
7.$ SEND SMITHJB
SMITHJB: $ MAIL
MAIL>
This example shows how to spawn a subprocess from within SEND.
If a command appears after the $, then the command will be
executed and control will return to SEND once the spawned
command is finished. If no command appears after the $, then
the subprocess will begin prompting for commands.
Information Services, Central Computing
University
of Missouri Kansas City