utility informs the system whether you want to be notified on your terminal
when mail arrives.
Affected is the first terminal associated with the standard input,
standard output or standard error file descriptor, in that order.
Thus, it is possible to use the redirection facilities of a shell to
toggle the notification for other terminals than the one
The following options are available:
Enable header notification.
Enable bell notification.
When header notification is enabled, the header and first few lines of
the message will be printed on your terminal whenever mail arrives.
command is often included in the file
to be executed at each login.
When bell notification is enabled, only two bell characters
will be printed on your terminal whenever mail arrives.
If no arguments are given,
displays the present notification status of the terminal to the
utility operates asynchronously.
For synchronous notification use the