#$/usr/bin/perl -w

use strict;
use warnings;


my ($date, $month, $year, $weekday) = (localtime)[3,4,5,6];


$month++;                        # Converts $month to human readable.

my $days = MonthDays($month, $year);            # Figures out how many
+ $days are in current month.

my $offset = ($date % 7);                # Returns the offset of weekd
+ays today is from the 1st, 0-6.
                            # i.e. 0 means that today's $weekday == th
+e 1st's $weekday.

my @months = qw(January February March April May June July August Sept
+ember October November December);

my $i = 1;                        # Set increment counter to 1.

$month--;                        # Converted $month back to machine-re
+adable.

$month = $months[$month];                # Converts $month number to m
+onth Name
$year = $year + 1900;                    # Converts $year to human rea
+dable 
    
$weekday = ($weekday - $offset);

my @weekdays = qw(Monday Tuesday Wednesday Thursday Friday Saturday Su
+nday);


######################################################################
+###########################
#                                                #
#        This section names the file - either journal.txt or journal_m
+onth_year.txt    #
#                                                #
#                                                #
######################################################################
+###########################

my $file = "journal.txt";

if (-e "journal.txt")  {            # Checks to see if journal.txt exi
+sts.

    $file = ("journal_" . $month . "_" . $year . ".txt");  # If so, gi
+ves it a dated name instead.

}

if (-e $file) {

    die "File $file already exists!\n";

        sleep(2);            # I sleep here so I can read the msg in W
+in32.

}

######################################################################
+###########################
#                                                #
#        OK, now're we're ready to get on with things. This part actua
+lly outputs    #
#        the file in a simple, nicely formatted monthly journal.      
+          #
#                                                #
######################################################################
+###########################



open (OUTPUT, "> $file") 
    or die "Could not open file for writing: $!\n";


while ($i <= $days) {

    print OUTPUT "$weekdays[$weekday], $month $i, $year\n\n\n";

$i++;

push(@weekdays, shift(@weekdays));

}

close (OUTPUT);

sub MonthDays {                # This subroutine determines the natura
+l weekday names.

    my @monthDays= qw( 31 28 31 30 31 30 31 31 30 31 30 31 );
    my $month = shift(@_);
    my $year= @_ ? shift(@_) : 1900+(localtime())[5];
    if(  $year <= 1752  ) {

        # Note:  Although September 1752 only had 19 days,
        # they were numbered 1,2,14..30!

        return 19   if  1752 == $year  &&  9 == $month;

        return 29   if  2 == $month  &&  0 == $year % 4;
    } else {
        return 29   if  2 == $month  and
          0 == $year%4  &&  0 == $year%100  ||  0 == $year%400;
    }
    return $monthDays[$month-1];
}

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