#!/bin/bash
############################################################################
#  http://LinuxMeister.net/Scripts/while-loop.sh.html
#	 john meister jan 2015
############################################################################
#   display calendar for each month of the year in a file for analysis
#  testing monthly myth that a month with 5 mondays, 5 Saturdays and 5 sundays
#   only happens once ever 823 years 
############################################################################
echo "display months of year in long list by month"
echo "showing months with 5 Mondays, 5 Saturdays and 5 Sundays"
head -n 43 31find.sh | tee 5m5s5s.txt
echo 
#  set Y to first year of series
    Y=1900
#   outside loop is the year, inside loop is the month
    while [ $Y -le 2016 ]     # while the count is less than 2016 - YEAR
       	    do                              # outside loop - years
		cal -m 1 $Y | grep -B 8 ^31  | tee -a 5m5s5s.txt # if 31 is on a monday print calendar for that month
		cal -m 3 $Y | grep -B 8 ^31  | tee -a 5m5s5s.txt # if 31 is on a monday print calendar for that month
		cal -m 5 $Y | grep -B 8 ^31  | tee -a 5m5s5s.txt # if 31 is on a monday print calendar for that month
		cal -m 7 $Y | grep -B 8 ^31  | tee -a 5m5s5s.txt # if 31 is on a monday print calendar for that month
		cal -m 8 $Y | grep -B 8 ^31  | tee -a 5m5s5s.txt # if 31 is on a monday print calendar for that month
		cal -m 10 $Y | grep -B 8 ^31  | tee -a 5m5s5s.txt # if 31 is on a monday print calendar for that month
		cal -m 12 $Y | grep -B 8 ^31  | tee -a 5m5s5s.txt # if 31 is on a monday print calendar for that month
  	    Y=$(( $Y + 1 ))     	# increment variable YEAR by one 
	done
cat 5m5s5s.txt | grep -A 7 Jan | tee -a JANUARY-w-5m5s5s.txt
cat 5m5s5s.txt | grep -A 7 Mar | tee -a MARCH-w-5m5s5s.txt
cat 5m5s5s.txt | grep -A 7 May | tee -a MAY-w-5m5s5s.txt
cat 5m5s5s.txt | grep -A 7 Jul | tee -a JULY-w-5m5s5s.txt
cat 5m5s5s.txt | grep -A 7 Aug | tee -a AUGUST-w-5m5s5s.txt
cat 5m5s5s.txt | grep -A 7 Oct | tee -a OCTOBER-w-5m5s5s.txt
cat 5m5s5s.txt | grep -A 7 Dec | tee -a DECEMBER-w-5m5s5s.txt
############################################################################