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.\"    must display the following acknowledgement:
.\"	This product includes software developed by the University of
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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 "名称 (NAME)"
.Nm biff
.Nd "新到邮件提醒"
.Sh "总览 (SYNOPSIS)"
.Nm biff
.Op Cm ny
.Sh "描述 (DESCRIPTION)"
.Nm Biff
通知系统在当前终端会话期间有新邮件是否提醒你。
.Pp
支持的选项有
.Nm biff :
.Bl -tag -width 4n
.It Cm n
禁止新邮件提醒。
.It Cm y
开启新邮件提醒。
.El
.Pp
当新邮件提醒开启后， 如果有邮件到达， 邮件头和邮件正文的头几行将在你的屏幕上打印出来。
通常会在
.Pa \&.login
或者
.Pa \&.profile
文件中加上一个
.Dq Li biff y
命令， 好让每次登录时自动执行。 
.Pp
.Nm Biff
通过
.Xr comsat 8
服务异步执行。 如果此服务没有开启，
.Nm biff
就不做任何事情。 在这种情况下， 或者需要同步提醒， 用
.Xr sh 1
的
.Ar MAIL
变量， 或者
.Xr csh 1
的
.Ar mail
变量。
.Sh "参见 (SEE ALSO)"
.Xr csh 1 ,
.Xr mail 1 ,
.Xr sh 1 ,
.Xr comsat 8
.Sh "历史 (HISTORY)"
.Nm
此命令出现于
.Bx 4.0
。
.Sh "错误 (BUGS)"
.Xr su 1
,和 biff 看来并不能一起工作。 这个问题是由于 tty 任然是执行 su 命令的人所有， 这可能导致在改变你的会话的 biff 状态时出现
.Dq Li 拒绝访问错误。
.Pp
请把错误报告给 netbug@ftp.uk.linux.org。 并且附上diffs/patches， 或者编译错误日志等，尽可能完整。
.Sh "[中文版维护人]"
.B 唐友 <tony_ty@263.net>
.Sh "[中文版最新更新]"
.B 2001/8/28
.Sh "[中国Linux论坛man手册页翻译计划]"
.BI http://cmpp.linuxforum.net
.Sh "跋"
.br
本页面中文版由中文 man 手册页计划提供。
.br
中文 man 手册页计划：\fBhttps://github.com/man-pages-zh/manpages-zh\fR