biff(1)biff(1)Namebiff - be notified if mail arrives and who it is from
The command informs the system whether you want to be notified when
mail arrives during the current terminal session. The command, y,
enables notification; the command, n, disables it. The command with no
options displays the current status of
When mail notification is enabled, the header and first few lines of
the message will be printed on your screen whenever mail arrives. A y
command is often included in the file .login or .profile to be executed
at each login.
The command operates asynchronously. For synchronous notification use
the MAIL variable of or the variable of
n Disables notification that mail has arrived.
y Enables notification that mail has arrived.
See Alsocsh(1), mail(1), sh(1), comsat(8c)biff(1)