3 calendar \- reminder service
5 \fBcalendar [\fB\-\fR] [\fB\-r\fR]\fR
18 .FL "\-" "Work for every user and send mail to him"
19 .FL "\-r" "Restrict multiple execution on the same day"
21 .EX "calendar" "Check \fIcalendar\fR file in current directory"
22 .EX "calendar" "Normary used under the control of cron(8)"
23 .EX "calendar \-r" " Normary used in /etc/rc file"
26 Basically \fIcalendar\fR program consults the file \fIcalendar\fR in the
27 current directory and display lines which contain today's or tomorrow's date.
28 Month-day formats such
29 as '12/25', 'Dec. 25', 'december 25', '*/25', '12/*', '*/*' are
30 recognized. The asterisk
31 means 'all' days or 'all' months. On weekends 'tomorrow' extends through
32 next Monday without any consideration about holidays.
33 To prevent ambiguity, the formats '25 Dec.' and '25/12' are not recognized.
35 When an argument \fB\-\fR is present, \fIcalendar\fR works for all users
36 with a file \fIcalendar\fR in their login directories and sends them mail.
37 Normally this is done daily under the control of \fIcron\fR.
39 The \fB\-r\fR option does its the same job as \fB\-\fR option, but touches
40 the \fIcalendar\fR to prevents further access on the same day.
41 Normally this is done in the \fI/etc/rc\fR file on a machine which may be
42 booted several times in one day.