Computer Science - Unix - Discussion

Discussion :: Unix - Section 1 (Q.No.30)


Which of the following command addresses all users who are currently hooked on?

[A]. write
[B]. mail
[C]. wall
[D]. mesg
[E]. None of the above

Answer: Option C


No answer description available for this question.

Sudha said: (Jul 15, 2011)  
"Wall" command is used to send message to all users who are connected to network.

S.R.R. said: (Mar 14, 2013)  
Wall (an abbreviation of write to all) is a Unix command-line utility that displays the contents of a file or standard input to all logged-in users. It is typically used by root to send out shutting down message to all users just before power off.

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