Annotation of researchv10dc/man/man8/cron.8, revision 1.1

1.1     ! root        1: .TH CRON 8
        !             2: .CT 1 sa_auto
        !             3: .SH NAME
        !             4: cron \- clock daemon
        !             5: .SH SYNOPSIS
        !             6: .B /etc/cron
        !             7: .SH DESCRIPTION
        !             8: .I Cron
        !             9: executes commands at specified dates and times
        !            10: according to the instructions in the file
        !            11: .FR /etc/crontab .
        !            12: It should be run once from
        !            13: .IR rc (8).
        !            14: .PP
        !            15: .I Crontab
        !            16: entries are lines of seven fields separated by blanks or tabs:
        !            17: .IP
        !            18: .I
        !            19: login minute hour day month weekday command
        !            20: .PP
        !            21: .I Login
        !            22: is the login name under
        !            23: whose userid and groupid
        !            24: the command should be executed.
        !            25: The next five fields are integer patterns for
        !            26: .PD0
        !            27: .RS
        !            28: .TP \w'day\ of\ month\ \ 'u
        !            29: minute
        !            30: 0-59
        !            31: .TP
        !            32: hour
        !            33: 0-23
        !            34: .TP
        !            35: day of month
        !            36: 1-31
        !            37: .TP
        !            38: month of year
        !            39: 1-12
        !            40: .TP
        !            41: day of week
        !            42: 0-6; 0=Sunday
        !            43: .PD
        !            44: .RE
        !            45: .PP
        !            46: Each pattern may
        !            47: contain a number in the range above;
        !            48: two numbers separated by
        !            49: a hyphen
        !            50: meaning an inclusive range;
        !            51: a list of numbers separated by
        !            52: commas meaning any of the numbers;
        !            53: or an asterisk meaning all legal values.
        !            54: .PP
        !            55: The last field is a string
        !            56: to be executed by the shell,
        !            57: after replacing
        !            58: .L %
        !            59: with newline.
        !            60: .PP
        !            61: It is wise to spread the times of activities to avoid
        !            62: bogging the system down at favorite hours.
        !            63: .PP
        !            64: .I Cron
        !            65: examines
        !            66: .I crontab
        !            67: every minute.
        !            68: .SH EXAMPLES
        !            69: .EX
        !            70: daemon 17 3  *     *  *   /usr/bin/calendar - # reminders at 0317
        !            71: adm    15 4  1,15  *  *   ac -p | mail adm # bimonthly accounts
        !            72: root 0  12 22-28 11 4   /etc/wall Time for Thanksgiving dinner
        !            73: .EE
        !            74: .SH FILES
        !            75: .F /etc/crontab
        !            76: .SH SEE ALSO
        !            77: .IR at (1)
        !            78: .SH BUGS
        !            79: The behavior of 
        !            80: .L %
        !            81: in
        !            82: .I crontab
        !            83: entries is nonstandard.
        !            84: Strings following
        !            85: .L %
        !            86: should be delivered to the command as standard input.

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