# Determine O/S from rails?

**URL:** <https://www.ruby-forum.com/t/determine-o-s-from-rails/106007>\
**Category:** Rails\
**Created:** [June 5, 2007, 3:45pm UTC](https://www.ruby-forum.com/t/determine-o-s-from-rails/106007 "2007-06-05T15:45:20Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![dmcclean](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/91b2a8/32.png) [@dmcclean](https://www.ruby-forum.com/u/dmcclean)\
**Post date:** [June 5, 2007, 3:45pm UTC](https://www.ruby-forum.com/t/determine-o-s-from-rails/106007/1 "2007-06-05T15:45:20Z")

</div>

Is there a simple way to determine the OS rails is currently running  
under. I have an application  
which runs under both Windows and Rails. The code needs to access a  
different file depending on  
which OS is currently running.

Thanks in advance,  
Don Mc

---

<div class="post-metadata">

**Author:** ![dmcclean](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/91b2a8/32.png) [@dmcclean](https://www.ruby-forum.com/u/dmcclean)\
**Post date:** [June 5, 2007, 3:49pm UTC](https://www.ruby-forum.com/t/determine-o-s-from-rails/106007/2 "2007-06-05T15:49:21Z")

</div>

On 05/06/07, Don.Mc [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> Is there a simple way to determine the OS rails is currently running  
> under.

[http://wiki.ruby-portal.de/Plattform\_bestimmen](http://wiki.ruby-portal.de/Plattform_bestimmen)

-Thomas

---

<div class="post-metadata">

**Author:** ![dmcclean](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/91b2a8/32.png) [@dmcclean](https://www.ruby-forum.com/u/dmcclean)\
**Post date:** [June 5, 2007, 4:25pm UTC](https://www.ruby-forum.com/t/determine-o-s-from-rails/106007/3 "2007-06-05T16:25:39Z")

</div>

Thanks!

Don Mc