pty4/biff.1 at master · drudru/pty4 · GitHub

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.TH biff 1
.SH NAME
biff \- be notified if mail arrives and who it is from
.SH SYNOPSIS
.B biff
[
.B n
] [
.B y
]
.SH DESCRIPTION
After
.B biff y,
the system will display
the top of incoming mail on your screen,
as described in
.B comsat(8).
.B biff n
turns this off.
.B biff
applies to your current terminal session;
typically you'd put a
.B biff y
into your
.I \&.login,
.I \&.cshrc,
or
.I \&.profile.

.B biff
without an argument tells you your current
``biffing'' status.

The mail notification enabled by
.B biff
operates asynchronously.
For synchronous notification use the MAIL variable of
.B sh (1)
or the mail
variable of
.B csh (1).

.B biff
requires its input to be your terminal session
(or at least a session you own). All it really
does is handle the owner-execute bit on the terminal.

.B biff
only looks at the first letter of its first argument.

.B biff
was named after a dog at Berkeley.
.SH "SEE ALSO"
csh(1),
sh(1),
mail(1),
comsat(8C)