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.\" All rights reserved.
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.\" modification, are permitted provided that the following conditions
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.\" 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.
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.\"     from: @(#)biff.1	6.5 (Berkeley) 3/14/91
.\"
.TH BIFF 1 1999-07-31 GNU
.Dd July 31, 1999
.Dt BIFF 1
.Os "Linux NetKit (0.16)"
.Sh "名稱 (NAME)"
.Nm biff
.Nd "新到郵件提醒"
.Sh "總覽 (SYNOPSIS)"
.Nm biff
.Op Cm ny
.Sh "描述 (DESCRIPTION)"
.Nm Biff
通知系統在當前終端會話期間有新郵件是否提醒你。
.Pp
支持的選項有
.Nm biff :
.Bl -tag -width 4n
.It Cm n
禁止新郵件提醒。
.It Cm y
開啓新郵件提醒。
.El
.Pp
當新郵件提醒開啓後， 如果有郵件到達， 郵件頭和郵件正文的頭幾行將在你的屏幕上打印出來。
通常會在
.Pa \&.login
或者
.Pa \&.profile
文件中加上一個
.Dq Li biff y
命令， 好讓每次登錄時自動執行。 
.Pp
.Nm Biff
通過
.Xr comsat 8
服務異步執行。 如果此服務沒有開啓，
.Nm biff
就不做任何事情。 在這種情況下， 或者需要同步提醒， 用
.Xr sh 1
的
.Ar MAIL
變量， 或者
.Xr csh 1
的
.Ar mail
變量。
.Sh "參見 (SEE ALSO)"
.Xr csh 1 ,
.Xr mail 1 ,
.Xr sh 1 ,
.Xr comsat 8
.Sh "歷史 (HISTORY)"
.Nm
此命令出現於
.Bx 4.0
。
.Sh "錯誤 (BUGS)"
.Xr su 1
,和 biff 看來並不能一起工作。 這個問題是由於 tty 任然是執行 su 命令的人所有， 這可能導致在改變你的會話的 biff 狀態時出現
.Dq Li 拒絕訪問錯誤。
.Pp
請把錯誤報告給 netbug@ftp.uk.linux.org。 並且附上diffs/patches， 或者編譯錯誤日誌等，儘可能完整。
.Sh "[中文版維護人]"
.B 唐友 <tony_ty@263.net>
.Sh "[中文版最新更新]"
.B 2001/8/28
.Sh "[中國Linux論壇man手冊頁翻譯計劃]"
.BI http://cmpp.linuxforum.net
.Sh "跋"
.br
本頁面中文版由中文 man 手冊頁計劃提供。
.br
中文 man 手冊頁計劃：\fBhttps://github.com/man-pages-zh/manpages-zh\fR