99 Bottles of Beer on the Wall (E sample program)

99-bottles.e

Checkpoint Start.  
<-- Defines a checkpoint named Start. You can go back to it with Goto, as seen on line 13. Also, every operation ends with a period.

Set Drink to "Dr. Pepper".
Set Bottles to 0. 
<-- This sets the variable Bottles. Variables store values.
<-- Similarly to other languages, quotes around text makes them a string (string of characters, or text)
					
Add 99 to Bottles.
<-- Add 99 bottles. (Shown here as an example. You could just Set Bottles to 99.)

Checkpoint TakeOneDown.
Yell "@Bottles bottles of @Drink on the wall, @Bottles bottles of @Drink.".
<-- @ behind a variable name will format it into a string.

Subtract 1 from Bottles.		<-- Subtract builtin.
Yell "Take one down, pass it around, @Bottles bottles of @Drink on the wall."
<-- FYI: If you need to write an email address or something it needs to be escaped like \@.

Is Bottles over 0? Goto TakeOneDown.

Yell "No more bottles of @Drink on the wall, no more bottles of @Drink."
Yell "Go to the store and buy some more, 99 bottles of @Drink on the wall..."

<-- If we wanted to make this neverrending, we can just do:
<-- Goto Start.

<-- Also yea comments can be at the end of a line, it just gets messy without syntax formatting