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28 .\" @(#)biff.1 8.1 (Berkeley) 6/6/93
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37 .Nd "be notified if mail arrives and who it is from"
44 utility informs the system whether you want to be notified on your terminal
47 Affected is the first terminal associated with the standard input,
48 standard output or standard error file descriptor, in that order.
49 Thus, it is possible to use the redirection facilities of a shell to
50 toggle the notification for other terminals than the one
54 The following options are available:
55 .Bl -tag -width indent
59 Enable header notification.
61 Enable bell notification.
64 When header notification is enabled, the header and first few lines of
65 the message will be printed on your terminal whenever mail arrives.
68 command is often included in the file
72 to be executed at each login.
74 When bell notification is enabled, only two bell characters
77 will be printed on your terminal whenever mail arrives.
79 If no arguments are given,
81 displays the present notification status of the terminal to the
86 utility operates asynchronously.
87 For synchronous notification use the
98 utility exits with one of the following values:
99 .Bl -tag -width indent
101 Notification is enabled.
103 Notification is disabled.
108 Previous versions of the
110 utility affected the terminal attached to standard error without first
111 trying the standard input or output devices.
122 It was named after the dog of Heidi Stettner.
124 in August 1993, at 15.