How to create directories recursively in ruby?

Question

I want to store a file as /a/b/c/d.txt, but I do not know if any of these directories exist and need to recursively create them if necessary. How can one do this in ruby?

Answer 1

If you are running on unixy machines, don't forget you can always run a shell command under ruby by placing it in backticks.

`mkdir -p /a/b/c`