The contents of `FILE` when code is coming from STDIN

Question

If I run code like this, I get - in the __FILE__ var:

cat script.rb | ruby

I can't find that documented anywhere though (docs). Where can I get exact details about it?

What is `__FILE__` when you run it like this: `ruby script.rb`? — Rob Wise, Jul 17 '14 at 01:51

score 1 · Answer 1 · edited May 23 '17 at 12:13

1

- is sometimes used to refer to STDIN. This is a unix thing, and not unique to ruby.

Described a little bit here

edited May 23 '17 at 12:13

Community

answered Jul 17 '14 at 02:40

Some Guy

The contents of `__FILE__` when code is coming from STDIN