[alt.sources] REMIND 2.0 03/03

dfs@doe.carleton.ca (David F. Skoll) (11/02/90)

------------- CUT HERE ---
#!/bin/sh
# This is part 03 of Remind 2.0
if touch 2>&1 | fgrep 'amc' > /dev/null
 then TOUCH=touch
 else TOUCH=true
fi
# ============= remind.1 ==============
if test X"$1" != X"-c" -a -f 'remind.1'; then
	echo "File already exists: skipping 'remind.1'"
else
sed 's/^X//' << 'SHAR_EOF' > remind.1 &&
X.TH REMIND 1 "25 October 1990"
X.UC 4
X.SH NAME
Xremind \- a sophisticated reminder service
X.SH SYNOPSIS
X.B remind
X[
X.B \-dvrop
X]
X.I filename
X[
X.I date
X]
X.SH DESCRIPTION
X.B remind
Xreads the supplied
X.I filename
Xfor a list of reminders, and then issues reminders appropriate for
Xthe current date.
XEach reminder can consist of a message sent to standard output, or
Xa program to be executed.
X.SH OPTIONS
X.TP
X.B \-d
XThe
X.B \-d
Xflag causes
X.B remind
Xto enter a debugging mode.
XIn this mode, each reminder in the reminder file is examined and its
Xtrigger date is printed to standard output.  Also, some consistency
Xchecking is done, and warnings are issued about constructs which could
Xresult in slow execution times.
X.TP
X.B \-v
XThe
X.B \-v
Xflag causes the debugging messages caused by
X.B \-d
Xto be printed in a verbose manner.  Also, any error messages issued by
X.B remind
Xare printed in verbose format.
X.TP
X.B \-r
XThe
X.B \-r
Xflag causes
X.B remind
Xto ignore any
X.B RUN
Xdirectives in the reminder file.
X.TP
X.B \-o
XThe
X.B \-o
Xflag causes
X.B remind
Xto ignore any
X.B ONCE
Xdirectives in the reminder file.
X.TP
X.B \-p
XThe
X.B \-p
Xflag causes
X.B remind
Xto go into
X.I purge
Xmode.  This mode is incompatible with the
X.B \-d
Xflag.  It causes
X.B remind
Xto scan the reminder file and echo all reminders which have not expired
Xto the standard output.  All expired reminders are echoed to the standard
Xerror stream.
X.PP
XIf you supply a
X.I date
Xon the command line, it must consist of
X.I day month year
Xwhere
X.I day
Xis the day of the month,
X.I month
Xis (at least the first three letters of) the English name of the month,
Xand
X.I year
Xis a year (all 4 digits) from 1990 to 2075.  These components can appear
Xin any order, but must be separated by spaces.  If a date is supplied,
X.B remind
Xuses it rather than the actual system date as its notion of "today."  You
Xcan use this feature to test how reminders will appear in the future.
X.SH REMINDER FILES
X.B Remind
Xuses scripts called
X.I reminder files
Xto control its operation.  A sample reminder file is shown below:
X.PP
X.nf
X	#!/usr/local/bin/remind
X	# Sample file
X	BANNER Hi there.  Here are your reminders:
X
X	# First some birthdays
X	REM 6 Jan MSG David's birthday.
X	REM 23 Nov +10 MSG El's birthday is %a.
X
X	# Next some housekeeping
X	REM 1 -1 OMIT Sat Sun RUN do_backup
X
X	# Introduce some holidays
X	OMIT 25 Dec		# Christmas
X	OMIT  1 July		# Canada Day
X	OMIT 22 Nov 1990	# American Thanksgiving
X
X	# Business things
X	REM 23 Nov 1990 +2 MSG Meeting with Bill at 10am %a.
X.fi
X.PP
XNote that
X.B remind
Xignores blank lines and lines beginning with "#".
XAlso, commands, names of months, etc. can be typed in any
Xmixture of upper- and lower-case.  The convention I use is to
Xuse upper-case for
X.B remind
Xtokens like
X.I
XMSG, OMIT,
Xetc., and mixed case for other words like
X.I January
Xand
X.I Sunday.
X.SH THE REM COMMAND
XThe most-used command in a reminder file is the
X.I REM
Xcommand.  This command is used to denote a reminder.  There are two
Xforms of the
X.I REM
Xcommand; they are:
X.RS
XREM [ONCE]
X[
X.I date_spec
X]
X[
X.I delta
X]
X[
X.I back
X]
X[
XOMIT
X.I omit_list
X]
XMSG
X.I body
X.PP
XREM [ONCE]
X[
X.I date_spec
X]
X[
X.I delta
X]
X[
X.I back
X]
X[
XOMIT
X.I omit_list
X]
XRUN
X.I body
X.RE
XThe
X.I date_spec, delta
Xand
X.I back
Xcan be specified in any order.  The 
X.I OMIT, 
Xif present, must follow these three
Xitems.  The 
X.I MSG
Xor
X.I RUN 
Xmust be the last item before the
X.I body.
X.PP
X.B Date Specifications
X.PP
XThe
X.I date_spec
Xconsists of zero to four parts.  These parts are
X.I day
X(day of month),
X.I month
X(month name),
X.I year
Xand
X.I weekday.
X.I Month
Xand
X.I weekday
Xare the English names of months and weekdays.  At least the first three
Xcharacters must be used.  Case is irrelevant.  The following are examples
Xof the various parts of a
X.I date_spec:
X.TP
X.I day:
X1, 22, 31, 14, 3
X.TP
X.I month:
XJANUARY, feb, March, ApR, may, Aug
X.TP
X.I year:
X1990, 1993, 2030, 95 (interpreted as 1995).  The year can range
Xfrom 1990 to 2075.
X.TP
X.I weekday:
XMonday, tue, Wed, THU, Friday, saturday, sundAy
X.PP
XNote that there can be several
X.I weekday
Xcomponents separated by spaces in a
X.I date_spec.
X.PP
X.B Interpretation of Date Specifications
X.PP
XThe following examples show how date specifications are interpreted.
X.PP
X1. Null date specification - the reminder is triggered every day.
XThe trigger date for a specific run is simply the current system date.
X.PP
X2. Only
X.I day
Xpresent.  The reminder is triggered on the specified day of each month.
XThe trigger date for a particular run is the closest such day to the
Xcurrent system date.  For example:
X.nf
X	REM 1 MSG First of every month.
X	REM 31 MSG 31st of every month that has 31 days.
X.fi
X.PP
X3. Only
X.I month
Xpresent.  The reminder is triggered every day of the specified month.
XExample:
X.nf
X	REM Feb MSG Every day in February
X.fi
X.PP
X4.
X.I day
Xand
X.I month
Xpresent.  Examples:
X.nf
X	REM 6 Jan MSG Every 6th of January
X	REM Feb 29 MSG Every 29th of February
X.fi
X.PP
X5.  Only
X.I year
Xpresent. Example:
X.nf
X	REM 1991 MSG Every day in 1991
X.fi
X.PP
X6.
X.I year
Xand
X.I day
Xpresent.  Examples:
X.nf
X	REM 1 1990 MSG 1st of every month in 1990
X	REM 1992 23 MSG 23rd of every month in 1992
X.fi
X.PP
X7.
X.I year
Xand
X.I month
Xpresent.  Examples:
X.nf
X	REM Feb 1991 MSG Every day in Feb 1991
X	REM 1992 September MSG Every day in Sept 1992
X.fi
X.PP
X8.
X.I year, month
Xand
X.I day
Xpresent.  Examples:
X.nf
X	REM 8 Jan 1991 MSG 8th January 1991.
X	REM 1992 March 9 MSG 9th March 1992.
X.fi
X.PP
X9.
X.I weekday
Xonly.  Examples:
X.nf
X	REM Sat MSG Every Saturday
X	REM Mon Tue Wed Thu Fri MSG Every working day
X	REM Monday Wednesday MSG Every Monday and Wednesday
X.fi
X.PP
X10.
X.I weekday
Xand
X.I day
Xpresent.  Examples:
X.nf
X	REM Sat 1 MSG First Saturday of every month
X	REM Mon Tue Wed Thu Fri MSG 1st working day after 15th of every month
X.fi
X.PP
X11.
X.I weekday
Xand
X.I month
Xpresent.  Examples:
X.nf
X	REM Mon March MSG Every Monday in March
X	REM Mon Tue Wed Thu Fri Feb MSG Every working day in February
X.fi
X.PP
X12.
X.I weekday, month
Xand
X.I day
Xpresent.  Examples:
X.nf
X	REM Mon 1 March MSG First Monday in March
X	REM Sat Sun 15 July MSG First Sat or Sun on or after 15 July
X.fi
X.PP
X13.
X.I weekday
Xand
X.I year
Xpresent.  Example:
X.nf
X	REM Sat Sun 1991 MSG Every Saturday and Sunday in 1991
X.fi
X.PP
X14.
X.I weekday, day
Xand
X.I year
Xpresent.  Examples:
X.nf
X	REM Mon 15 1990 MSG 1st Mon after 15th of every month in 1990
X	REM Mon Tue Wed Thu Fri 1 1990 MSG 1st working day of every
X		month in 1990
X.fi
X.PP
X15.
X.I weekday, month
Xand
X.I year
Xpresent.  Example:
X.nf
X	REM Mon Wed 1991 Feb MSG Every Mon and Wed in Feb 1991.
X.fi
X.PP
X16.
X.I weekday, day, month
Xand
X.I year
Xpresent.  Example:
X.nf
X	REM Mon Tue Wed Thu Fri 28 Oct 1990 MSG 1st working day
X		on or after 28 October 1990.
X.fi
X.PP
XNote that when
X.I weekday
Xand
X.I day
Xare specified,
X.B remind
Xchooses the first date on or after the specified
X.I day
Xwhich also satisfies the
X.I weekday
Xconstraint.  It does this by picking the first date on or after the specified
X.I day
Xwhich is listed in the list of
X.I weekdays.
XThus, a reminder like:
X.PP
X.nf
X	REM Mon Tue 28 Oct 1990 MSG Hi
X.fi
X.PP
Xwould be issued only on Monday, 29 October, 1990.  It would not be issued
Xon Tuesday, 30 October, 1990, since the 29th is the first date to satisfy
Xthe
X.I weekday
Xconstraints.
X.PP
X.B Backward Scanning
X.PP
XSometimes, you need to incorporate "backward scanning" into your date
Xspecification.  This is accomplished with the
X.I back
Xpart of the reminder specification.  If present, the
X.I back
Xis specified as a negative number.  This causes
X.B remind
Xto compute the trigger date as usual, and then move back the specified
Xnumber of days.  For example:
X.PP
X.nf
X	REM Mon 1 -7 MSG Last Monday of every month.
X.fi
X.PP
XThis works by finding the first Monday of every month, and then moving
X"back" seven days.  This results in the last Monday of the previous
Xmonth.  (Warning:  If you have global 
X.I OMITs, 
Xthis might not work - see
Xthe 
X.I OMIT 
Xcommand.)
X.PP
XAnother example is:
X.PP
X.nf
X	REM 1 -1 MSG Last day of every month.
X.fi
X.PP
XSince we don't know how many days are in a month, to get to the last day
Xof a month, we go to the first day of the next month and then move back
Xone day.
X.PP
X.B Remind
Xwill automatically scan forwards and backwards until it finds a suitable
Xtrigger date.  Note that large
X.I back
Xvalues can lead to a lot of backtracking and slow the execution of
X.B remind.
X.PP
X.B Advance Warning
X.PP
X.B Remind
Xcan warn you of an upcoming reminder as far in advance as you desire.  This
Xis specified by a
X.I delta,
Xwhich is a positive number preceded by a "+" sign.  For example:
X.PP
X.nf
X	REM 8 Jan 1992 +3 MSG Test1
X	REM 1 +1 MSG Test2
X.fi
X.PP
XThe reminder "Test1" will be triggered on the 8th of January, 1992, as well
Xas the 3 days preceding it.  All told, "Test1" will be triggered on the
X5th through the 8th of January, 1992.
X.PP
XThe reminder "Test2" will be triggered on the first day of every month, as
Xwell as the day before.  In effect, "Test2" will be triggered on the first
Xand last day of every month.
X.PP
X.I Delta
Xand
X.I back
Xcan be combined:
X.PP
X.nf
X	REM Mon 1 -7 +3 MSG Test3
X.fi
X.PP
XThe reminder "Test3" will be triggered on the last Monday of every month,
Xas well as the three days preceding it.
X.PP
X.B The MSG Keyword
X.PP
XThe
X.I MSG
Xkeyword causes the remaining part of the line to be passed through a
Xsubstitution filter and then printed to standard output whenever the
Xreminder is triggered.  See the section "Substitution" for more information
Xabout the substitution filter.
X.PP
X.B The RUN Keyword
X.PP
XThe
X.I RUN
Xkeyword causes the remaining part of the line to be passed through the
Xsubstitution filter and then passed to the default shell for execution
Xwhenever the reminder is triggered.  If the
X.B \-r
Xcommand-line option is specified, all
X.I REM
Xcommands with the
X.I RUN
Xkeyword are ignored.
X.PP
X.B
XGetting Reminded only Once per Day
X.PP
XIf you run
X.B remind
Xfrom your
X.I .login
Xscript, you may only want certain reminders to be run once per day, not
Xonce per login.  Typically, this is used to control
X.I RUN
Xcommands so that they only execute once per day.  To specify this,
Xplace the
X.I ONCE
Xkeyword in the reminder file.  When
X.B remind
Xencounters a
X.I ONCE
Xkeyword, it checks the last-access date of the reminder file.  If it is
Xequal to the current date,
X.B remind
Xassumes that the reminder file has already been run once, and ignored the
Xreminder.  If you start
X.B remind
Xwith the
X.B \-o
Xcommand-line option,
X.B remind
Xignores the
X.I ONCE
Xkeyword.
X.PP
X.B
XLocally Omitting Weekdays
X.PP
XA
X.I REM
Xcommand containing the
X.I OMIT
Xkeyword followed by a list of weekdays causes the
X.I delta
Xand
X.I back
Xto ignore the specified weekdays when counting days.  This is called a
X.I local OMIT.
XFor example:
X.PP
X.nf
X	REM 1 +1 OMIT Sat Sun MSG Test4
X.fi
X.PP
XThis reminder prints "Test4" on the first day of every month, as well
Xas the previous day.  If, however, the first day of the month falls on
Xa Sunday or Monday, the reminder is also triggered on the previous
XFriday, since the
X.I delta
Xof +1 does not count Saturdays or Sundays when moving backwards.  Here's
Xanother example:
X.PP
X.nf
X	REM 1 -1 +1 OMIT Sat Sun MSG Test5
X.fi
X.PP
XThis reminder is triggered on the last working day of each month, as well
Xas the working day preceding it.  Let's look at it in detail:
X.PP
XThe
X.I day
Xof "1" specifies the first day of each month.  The
X.I back
Xof "-1" tells
X.B remind
Xto go backwards by one day, not counting Saturday and Sunday as it moves.
XThis takes us the the last working day of the preceding month, which is the
Xtrigger date.  The
X.I delta
Xof "+1" ensures that the reminder will be triggered on the day preceding
Xthis trigger date also.  Finally, if the trigger date happens to be
Xa Monday, the
X.I delta
Xcombined with the
X.I local OMIT
Xcauses the reminder to be triggered on the Friday (and Saturday and Sunday)
Xpreceding the trigger date.
X.SH THE OMIT COMMAND
X.I OMIT
Xexists as a separate command as well as a keyword within a
X.I REM
Xstatement.  When used as a separate command, it is called a
X.I global OMIT,
Xand has the following form:
X.RS
XOMIT
X.I day
X.I month
X[
X.I year
X]
X.RE
XThe arguments can be specified in any order.
X.PP
XThe form without the
X.I year
Xcomponent is used for holidays which fall on the same date each year.
XFor example:
X.PP
X.nf
X	OMIT 25 December	# Christmas
X	OMIT  1 January		# New Year's Day
X.fi
X.PP
X(Note that
X.I OMIT
Xcan have a following comment on the same line, unlike the
X.I REM
Xcommand.)
X.PP
XThe form with the
X.I year
Xcomponent is used for holidays which vary from year to year.  For example:
X.PP
X.nf
X	OMIT 12 October 1990	# Columbus Day 1990
X	OMIT 22 November 1990	# Thanksgiving Day 1990
X.fi
X.PP
XIn its debugging messages,
X.B remind
Xcalls the first form a
X.I partially-specified global OMIT
Xand the second form a
X.I fully-specified global OMIT.
X.PP
XThe dates specified by
X.I global OMITs
Xare omitted by the
X.I back
Xand
X.I delta
Xportions of a reminders, in addition to any
X.I local OMITs.
XFor example:
X.PP
X.nf
X	OMIT 25 December
X	REM 26 +1 OMIT Sat Sun MSG Test6
X.fi
X.PP
XThis would issue a reminder on the 26th of each month, as well as the
Xpreceding working day.  Also, on the 24th of December 1990, the reminder
Xwould be issued.  Even though the 25th of December 1990 is a Tuesday, the
X.I global OMIT
Xwould cause the
X.I delta
Xto skip it.
X.PP
X.I Global OMITs
Xare in force for all reminders following them in the reminder file.  Thus,
Xyou could have a series of reminders for which
X.I global OMITs
Xare inappropriate (such as birthdays or reminders which rely on
X.I back
Xto get to a specific weekday) ahead of any
X.I global OMITs,
Xwith business reminders (for which omission of holidays is appropriate)
Xfollowing the
X.I global OMITs.
X.SH THE INCLUDE COMMAND
XThe
X.I INCLUDE
Xcommand has the following form:
X.RS
XINCLUDE
X.I filename
X.RE
XThis causes
X.B remind
Xto suspend the current file and read the contents of the specified
X.I filename.
XOnce that file has been read,
X.B remind
Xcontinues reading the original file from where it left off.
X.I INCLUDE
Xcommands can be nested to a depth of 10.
X.PP
X.I INCLUDE
Xallows you or someone else to maintain a file of holidays or system-wide
Xreminders that everyone should get.  For example, your reminder file could
Xlook something like this:
X.PP
X.nf
X	#!/usr/local/bin/remind
X	#
X	# Place personal stuff here - birthdays, etc.
X
X	# Now get system-wide global OMITS (holidays)
X	INCLUDE /usr/share/holidays
X
X	# and system-wide reminders
X	INCLUDE /usr/share/reminders
X
X	# Place local business stuff here.
X.fi
X.PP
XThe
X.I ONCE
Xkeyword operates on the last-access date of the top-level file.
XThe access dates of
X.I INCLUDEd
Xfiles are not used to control the operation of the
X.I ONCE
Xkeyword.
X.SH SUBSTITUTION
XBefore being processed, the body of a
X.I REM
Xcommand is passed through a substitution filter.  The filter scans for
Xsequences "%x" where "x" is any letter, and performs substitutions as
Xshown below.  (All dates refer to the trigger date of the reminder.)
X.TP
X.B %a
Xis replaced with "on \fIweekday, day month, year\fR"
X.RS
XFor example, consider the reminder:
X.PP
XREM 18 Oct 1990 +4 MSG Meeting with Bob %a.
X.PP
XOn 16 October 1990, it would print "Meeting with Bob on Thursday, 18 October,
X1990."
X.PP
XOn 17 October 1990, it would print "Meeting with Bob tomorrow."
X.PP
XOn 18 October 1990, it would print "Meeting with Bob today."
X.RE
X.TP
X.B %b
Xis replaced with "in \fIdiff\fR day's time" where
X.I diff
Xis the
X.B actual
Xnumber of days between the current date and the trigger date.
X(\fIOMITs\fR have no effect.)
X.RS
XFor example, consider:
X.PP
XREM 18 Oct 1990 +4 MSG Meeting with Bob %b.
X.PP
XOn 16 October 1990, it would print "Meeting with Bob in 2 days' time."
X.PP
XOn 17 October 1990, it would print "Meeting with Bob tomorrow."
X.PP
XOn 18 October 1990, it would print "Meeting with Bob today."
X.RE
X.TP
X.B %c
Xis replaced with "on \fIweekday\fR"
X.RS
XExample: REM 18 Oct 1990 +4 MSG Meeting with Bob %c.
X.PP
XOn 16 October 1990, it would print "Meeting with Bob on Thursday."
X.PP
XOn 17 October 1990, it would print "Meeting with Bob tomorrow."
X.PP
XOn 18 October 1990, it would print "Meeting with Bob today."
X.RE
X.TP
X.B %d
Xis replaced with "\fIday\fR", the day of the month.
X.TP
X.B %e
Xis replaced with "on \fIdd/mm/yyyy\fR"
X.TP
X.B %f
Xis replaced with "on \fImm/dd/yyyy\fR"
X.TP
X.B %g
Xis replaced with "on \fIweekday, day month\fR"
X.TP
X.B %h
Xis replaced with "on \fIdd/mm\fR"
X.TP
X.B %i
Xis replaced with "on \fImm/dd\fR"
X.TP
X.B %j
Xis replaced with "on \fIweekday, month day-th, year\fR"  This form appends the
Xcharacters "st", "nd", "rd" or "th" to the day of the month, as appropriate.
X.TP
X.B %k
Xis replaced with "on \fIweekday, month day-th\fR"
X.TP
X.B %l
Xis replaced with "on \fIyyyy/mm/dd\fR"
X.TP
X.B %m
Xis replaced with "\fImonth\fR", the name of the month.
X.TP
X.B %n
Xis replaced with the number (1 to 12) of the month.
X.TP
X.B %o
Xis replaced with " (today)" if and only if the current system date is the same
Xas the date being used by
X.B remind
Xas the current date.  Recall that you can specify a date for
X.B remind
Xto use on the command line.  This substitution is not generally useful in a
X.I REM
Xcommand, but is useful in a
X.I BANNER
Xstatement.  (See the section "The BANNER Command.)
X.TP
X.B %p
Xis replaced with "s" if the
X.I diff
Xbetween the current date and the trigger date is not 1.  You can use this
Xto construct reminders like:
X.RS
XREM 1 Jan +4 MSG %x day%p to go before New Year!
X.RE
X.TP
X.B %q
Xis replaced with "'s" if the
X.I diff
Xbetween the trigger date and the current date is 1.  Otherwise, it is replaced
Xwith "s'"  This can be used as follows:
X.RS
XREM 1 Jan +4 MSG New Year in %x day%q time!
X.RE
X.TP
X.B %r
Xis replaced with the day of the month (01 to 31) padded with a leading zero
Xif needed to pad to two digits.
X.TP
X.B %s
Xis replaced with "st", "nd", "rd" or "th" depending on the day of the month.
X.TP
X.B %t
Xis replaced with the number of the month (01 to 12) padded to two digits
Xwith a leading zero.
X.TP
X.B %u
Xis replaced with "on \fIweekday, day-th month, year\fR"  This is similar
Xto
X.B %a
Xexcept that "st", "nd", "rd" or "th" is added to the
X.I day
Xas appropriate.
X.TP
X.B %v
Xis replaced with "on \fIweekday, day-th month\fR"
X.TP
X.B %w
Xis replaced with "\fIweekday\fR", the name of the day of the week.
X.TP
X.B %x
Xis replaced with the
X.I diff
Xbetween the current date and the trigger date.  The
X.I diff
Xis defined as the actual number of days between these two dates;
X.I OMITs
Xare not counted.  (Strict date subtraction is performed.)
X.TP
X.B %y
Xis replaced with "\fIyear\fR", the year of the trigger date.
X.TP
X.B %z
Xis replaced with "\fIyy\fR", the last two digits of the year.
X.PP
XNotes:
X.TP
X o
XSubstitutions a, b, c, e, f, g, h, i, j, k, l, u and v all are replaced
Xwith "today" if the current date equals the trigger date, or "tomorrow"
Xif the trigger date is one day after the current date.  Thus, they are
X.B not
Xthe same as substitutions built up from the simpler %w, %y, etc.
Xsequences.
X.TP 
Xo
XCapital letters can be used in the substitution sequence, in which case
Xthe first character of the substituted string is capitalized (if it is
Xnormally a lower-case letter.)
X.TP 
Xo
XAll other characters following a "%" sign are simply copied.  In particular,
Xto get a "%" sign out, use "%%" in the body.  To start the body of a reminder
Xwith a space, use "% ", since
X.B remind
Xnormally scans for the first non-space character after a
X.I MSG
Xor
X.I RUN
Xtoken.
X.PP
X.B 
XMulti-line Reminders
X.PP
X.B Remind
Xis a line-oriented program.  Normally, a blank line is printed between
Xreminders.  You can "fake" a multi-line reminder by repeating single-line
Xreminders, ending all but the last with "%".  The final "%" causes
X.B remind
Xnot to print a blank line after the reminder.  (Don't type any spaces after
Xthe final "%")  Thus:
X.PP
X.nf
X	REM 25 July +2 MSG This is an example of a%
X	REM 25 July +2 MSG long reminder that takes up%
X	REM 25 July +2 MSG three lines.
X.fi
X.SH THE BANNER COMMAND
XWhen
X.B remind
Xissues reminders, it normally prints a message saying:
X.PP
X"Reminders for \fIweekday, day-th month, year\fR (today):"
X.PP
X(If you supply a date on the command line different from the system date,
Xthe "(today)" portion is omitted.)
X.PP
XYou can change this default to anything you want with the
X.I BANNER
Xcommand.  It should appear in the reminder file before any
X.I REM
Xcommands.  (This is not enforced, but a
X.I BANNER
Xcommand encountered after a reminder has been triggered will be ignored.)
X.PP
XThe format of
X.I BANNER
Xis:
X.PP
XBANNER
X.I string
X.PP
XThe
X.I string
Xis passed through the substitution mechanism described before, using the
Xcurrent date for substitution.  The standard banner is described by:
X.PP
X.nf
X	BANNER Reminders for %w, %d%s %m, %y%o:
X.fi
X.PP
XYou can have a blank banner by using:
X.PP
X.nf
X	BANNER %
X.fi
X.PP
X.SH PURGING REMINDER FILES
XYou should periodically purge your reminder file of "expired"
X.I REM
Xcommands and global
X.I OMITs.
XThese are reminders which took place in the past and can never occur
Xagain, or
X.I OMITs
Xwhich are for past years.  Of course, only
X.I REMs
Xand
X.I OMITs
Xwith the
X.I year
Xspecified can ever expire.
X.PP
XTo purge your reminder file, run
X.B remind
Xin
X.I purge
Xmode.  This mode simply echoes non-expired lines to standard output, and
Xexpired lines to standard error.  Thus, to purge a file, you could type:
X.PP
X.nf
X	REMIND -p notes.old > notes.new
X.fi
X.PP
XThe file "notes.new" would contain all non-expired lines from "notes.old."
XAll expired lines are echoed to the screen.
X.I INCLUDEd
Xfiles are read an processed, but not purged.  You must purge each
X.I INCLUDEd
Xfile separately.
X.PP
XYou can supply a date on the command line when purging, but beware:  If you
Xsupply a date in the future, you may inadvertently purge lines which have not
Xreally expired yet.
X.SH DEBUGGING A REMINDER FILE
XThe debug command-line option \-d is used to debug reminder files.  It tells
Xyou useful information about the reminder file.  It displays the trigger date
Xof each reminder, and places an asterisk by those which would be issued
Xon the current date.  It also informs you of
X.I OMITs
Xwhich have expired, and gives warnings about situations which could lead
Xto long execution times or unexpected results.
X.PP
XAll debugging messages are sent to standard error.
X.SH AUTHOR
XDavid F. Skoll
X.SH BUGS
X.B Remind
Xwas originally written for MS-DOS and ported to UNIX.  It does some things
Xin an ungainly way.
X.PP
XMulti-line reminders are a kludge.
X.PP
XDate calculation algorithms are fairly "brute force."
X
SHAR_EOF
$TOUCH -am 1101132790 remind.1 &&
chmod 0600 remind.1 ||
echo "restore of remind.1 failed"
set `wc -c remind.1`;Wc_c=$1
if test "$Wc_c" != "22384"; then
	echo original size 22384, current size $Wc_c
fi
fi
# ============= remind.mak ==============
if test X"$1" != X"-c" -a -f 'remind.mak'; then
	echo "File already exists: skipping 'remind.mak'"
else
sed 's/^X//' << 'SHAR_EOF' > remind.mak &&
X# Simple-minded MAKE file.
X
XHEADERS = globals.h protos.h defines.h
XWARN = /W3
Xmain.obj: main.c $(HEADERS)
X   cl $(WARN) /AS /Fomain.obj /c main.c
X
Xnextdate.obj: nextdate.c $(HEADERS)
X   cl $(WARN) /AS /Fonextdate.obj /c nextdate.c
X
Xdorem.obj: dorem.c $(HEADERS)
X   cl $(WARN) /AS /Fodorem.obj /c dorem.c
X
Xinit.obj: init.c $(HEADERS)
X   cl $(WARN) /AS /Foinit.obj /c init.c
X
Xdosubst.obj: dosubst.c
X   cl $(WARN) /AS /Fodosubst.obj /c dosubst.c
X
Xfiles.obj: files.c
X   cl $(WARN) /AS /Fofiles.obj /c files.c
X
Xremind.exe: main.obj nextdate.obj dorem.obj init.obj dosubst.obj files.obj
X   cl /Feremind.exe main.obj nextdate.obj dorem.obj init.obj dosubst.obj files.obj
X
SHAR_EOF
$TOUCH -am 1101134890 remind.mak &&
chmod 0600 remind.mak ||
echo "restore of remind.mak failed"
set `wc -c remind.mak`;Wc_c=$1
if test "$Wc_c" != "665"; then
	echo original size 665, current size $Wc_c
fi
fi
exit 0