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Using wall to broadcast messages z/OS UNIX System Services User's Guide SA23-2279-00 |
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A superuser can use the wall command to send
a message to all logged in shell users:
If the message is omitted from the command line, the user
will receive two beeps as a prompt to enter the message. You input
the message, pressing enter after each line, and when done inputting
the entire message, enter end-of-file or an interrupt (typically, <EscChar-D> for end-of-file or <EscChar-C> for an interrupt).The user of wall should be a superuser. This ensures that the user is permitted to write to all the users that are logged on. If a user who is not a superuser attempts to use wall to broadcast a message, some writes will fail and those users will not receive the message. Users who are sent a broadcast message will receive a beep announcing
the message, and a message in the form:
For more information on the wall command, see the wall command description in z/OS UNIX System Services Command Reference. |
Copyright IBM Corporation 1990, 2014
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