CosmOS
> do loops.script
> for a in 1 2
>   for b in x y
>     echo $a$b
1x
>   end
>   for b in x y
>     echo $a$b
1y
>   end
>   for b in x y
>     echo $a$b
>   end
> end
> for a in 1 2
>   for b in x y
>     echo $a$b
2x
>   end
>   for b in x y
>     echo $a$b
2y
>   end
>   for b in x y
>     echo $a$b
>   end
> end
> for a in 1 2
>   for b in x y
>     echo $a$b
>   end
> end
> set n go
> while same $n go
>   echo round
round
>   set n stop
> end
> while same $n go
>   echo round
>   set n stop
> end
> for c in p q
>   if same $c p
>     echo only p
only p
>   end
> end
> for c in p q
>   if same $c p
>     echo only p
>   end
> end
> for c in p q
>   if same $c p
>     echo only p
>   end
> end
> if same 1 2
>   for d in never
>     echo not this
>   end
> end
> for e in
>   echo no words
> end
> echo finished
finished
> while same a a
a loop wants a script to go back through
> for x in a b
a loop wants a script to go back through
> exit
halted
Execution halted.
[exit 0]