an easy script to generate a list of dates for a course schedule. This prints out the dates of specified week days (in this example, monday wednesday and friday) for each week day between a start and end date.

dates.rb

#!/usr/bin/env ruby
require 'date'
dates=Array.new()
#end date is 'c'
c = Date.new(2015,05,07)
# start date is 'b'
b= Date.new(2015,01,12)
days_of_week=["Monday","Wednesday","Friday"]
max_weeks= ((c-b)/7).to_int
max_weeks=max_weeks.ceil+1
course_day=0
(c-b).to_int.times do |t|
	w_day= Date::DAYNAMES[(b+t).wday] 
	date_day=(b+t).day
	date_month=(b+t).month
	week=(t/7)+1
	if days_of_week.member?(w_day)
	course_day+=1
	dates<<{"course_day"=>course_day,"weekday"=>w_day,"month"=>date_month,"date_day"=>date_day,"week"=>week}
	end
	end
File::open( 'my_dates'+ '.txt', 'w' ) do |f|
dates.each do |t|
f<< %{## Week: #{t["week"]} Day: #{t["course_day"]}\nDate: #{t["month"]}-#{t["date_day"]} \
 Weekday: #{t["weekday"]}
Weeks Remining:#{max_weeks-t["week"]} Days Remaining: #{max_weeks*days_of_week.length-(t["course_day"]+1)}
\n\n}
end
end