Which of the following commands will write a message to the terminals of all logged in users?
A
bcast
B
mesg
C
print
D
wall
Correta
E
yell
Explicação Oficial / Explicações da Comunidade
The wall command (short for "write all") sends a message to all currently logged-in users' terminals. It reads input from standard input or a file and displays it on the terminals of all users who have not disabled messages via mesg n. This is the standard Linux utility for broadcasting messages to all users.
