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Leisa Clark4,531 Points
Why Do I need to learn Linux? How does it relate to Ruby on Rails? Can I use Windows?
Great you bring up this question.
From my experiences from Window to Ubuntu, I don't recommend you to use Rails on Ruby on Windows because you will face alot of issues, massive installations and painfully slow. Linux, Ubuntu, or Mac are much better to develop with Ruby. You don't have to worry about Linux which is 99% similar to Apple Mac, you will learn everything quickly just like you play around with Windows. Moreover, some of gems/libraries wouldn't work well on Windows and alot of documentations based on Unix environment.
However, if you want to experience RoR with Windows, try desktop editor with Nitrous.io without having whole installation on Window system, just open Chrome and start with it.
Hope that helps. :)
Linux is what many web servers run. So, if you're doing it professionally, you'll probably run into it. Might as well learn a little, just in case. If you're willing to dive deeper, you can get a raspberry pi linux computer for $35.