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-.\" Copyright (c) 1980, 1990, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"     @(#)biff.1	8.1 (Berkeley) 6/6/93
-.\"
-.Dd June 6, 1993
-.Dt BIFF 1
-.Os BSD 4
-.Sh NAME
-.Nm biff
-.Nd "be notified if mail arrives and who it is from"
-.Sh SYNOPSIS
-.Nm biff
-.Op Cm ny
-.Sh DESCRIPTION
-.Nm Biff
-informs the system whether you want to be notified when mail arrives
-during the current terminal session.
-.Pp
-Options supported by
-.Nm biff :
-.Bl -tag -width 4n
-.It Cm n
-Disables notification.
-.It Cm y
-Enables notification.
-.El
-.Pp
-When mail notification is enabled, the header and first few lines of
-the message will be printed on your screen whenever mail arrives.
-A
-.Dq Li biff y
-command is often included in the file
-.Pa \&.login
-or
-.Pa \&.profile
-to be executed at each login.
-.Pp
-.Nm Biff
-operates asynchronously.
-For synchronous notification use the
-.Ar MAIL
-variable of
-.Xr sh 1
-or the
-.Ar mail
-variable of
-.Xr csh 1 .
-.Sh SEE ALSO
-.Xr csh 1 ,
-.Xr mail 1 ,
-.Xr sh 1 ,
-.Xr comsat 8
-.Sh HISTORY
-The
-.Nm
-command appeared in 
-.Bx 4.0 .