BIFF(1) - General Commands Manual #
BIFF(1) - General Commands Manual
NAME #
biff - be notified if mail arrives and who it is from
SYNOPSIS #
biff [n | y]
DESCRIPTION #
biff informs the system whether you want to be notified when mail arrives during the current terminal session.
The options are as follows:
n
Disables notification.
y
Enables notification.
When mail notification is enabled, the header and first few lines of
the message will be printed on your screen whenever mail arrives.
A
“biff y
”
command is often included in the file
.login
or
.profile
to be executed at each login.
biff
operates asynchronously.
For synchronous notification use the
MAIL
variable of
sh(1)
or the
mail
variable of
[csh(1)](/man/man1/csh.1).
EXIT STATUS #
The biff utility exits with one of the following values:
0
Notification was enabled at the time of invocation.
1
Notification was disabled at the time of invocation.
>1
An error occurred.
SEE ALSO #
[csh(1)](/man/man1/csh.1), mail(1), sh(1), comsat(8)
HISTORY #
The biff command appeared in 4.0BSD. “Biff” was Heidi Stettner’s dog. He died in August 1993, at 15.
OpenBSD 7.5 - August 12, 2013