Rails whenever gem: each month on the 20th

Question

I searched all over the internet for this, and the documentation isn't really talking about monthly jobs in specific. So I was hoping that someone here could tell me how to do this.

I've installed the whenever gem and all I need to know is the right syntax for this:

every :month, :on => '20th', :at => '02:00' do
  runner "Mailer.send_friend_sheet"
end

Hope someone can point me in the right direction..

Thanks!

Answer 1

You can use raw cron syntax as well if you cant figure out how to use with ruby syntax.

What you want will look like:

every '0 2 20 * *' do
  command "echo 'you can use raw cron syntax too'"
end

Here is a quick cheatsheet for how to use cron syntax

*     *     *   *    *        command to be executed
-     -     -   -    -
|     |     |   |    |
|     |     |   |    +----- day of week (0 - 6) (Sunday=0)
|     |     |   +------- month (1 - 12)
|     |     +--------- day of month (1 - 31)
|     +----------- hour (0 - 23)
+------------- min (0 - 59)

Shamelessly stolen from: http://adminschoice.com/crontab-quick-reference