Интерактивная система просмотра системных руководств (man-ов)
biff (1)
biff (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
>> biff (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )
biff (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
biff (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
BSD mandoc
NAME
biff
- be notified if mail arrives and who it is from
SYNOPSIS
[n | y | b
]
DESCRIPTION
The
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
runs on.
The following options are available:
n
Disable notification.
y
Enable header notification.
b
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.
A
``biff y
''
command is often included in the file
.login
or
.profile
to be executed at each login.
When bell notification is enabled, only two bell characters
( ASCII
\007)
will be printed on your terminal whenever mail arrives.
If no arguments are given,
displays the present notification status of the terminal to the
standard output.
The
utility operates asynchronously.
For synchronous notification use the
MAIL
variable of
sh(1)
or the
mail
variable of
csh(1).
EXIT STATUS
The
utility exits with one of the following values:
0
Notification is enabled.
1
Notification is disabled.
>1
An error occurred.
COMPATIBILITY
Previous versions of the
utility affected the terminal attached to standard error without first
trying the standard input or output devices.
