CALENDAR.1
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操作系统开发
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C/C++
- CALENDAR(1) Minix Programmer's Manual CALENDAR(1)
- NAME
- calendar - reminder service
- SYNOPSIS
- calendar [-] [-r]
- OPTIONS
- - Work for every user and send mail to him
- -r Restrict multiple execution on the same day
- EXAMPLES
- calendar # Check calendar file in current directory
- calendar # Normary used under the control of cron(8)
- calendar -r # Normary used in /etc/rc file
- DESCRIPTION
- Basically calendar program consults the file calendar in the current
- directory and display lines which contain today's or tomorrow's date.
- Month-day formats such as '12/25', 'Dec. 25', 'december 25', '*/25',
- '12/*', '*/*' are recognized. The asterisk means 'all' days or 'all'
- months. On weekends 'tomorrow' extends through next Monday without any
- consideration about holidays. To prevent ambiguity, the formats '25
- Dec.' and '25/12' are not recognized.
- When an argument - is present, calendar works for all users with a file
- calendar in their login directories and sends them mail. Normally this
- is done daily under the control of cron.
- The -r option does its the same job as - option, but touches the calendar
- to prevents further access on the same day. Normally this is done in the
- /etc/rc file on a machine which may be booted several times in one day.
- SEE ALSO
- cron(8).
- 1