mesg

mesg

The "mesg" command in Linux is used to control whether or not other users can send messages to your terminal.

help

Usage:
 mesg [options] [y | n]

Control write access of other users to your terminal.

Options:
 -v, --verbose  explain what is being done
 -h, --help     display this help
 -V, --version  display version

For more details see mesg(1)