how to use css-flip (bidi flipper) with node.js - node.js

Can any one please help me to get started with css-flip.
I have gone through their documentation but it seems to be for expert users. I do not have any experience with node.js.
How i will run the below CLI.
css-flip path/to/file.css > path/to/file.rtl.css
Will be much thankful to any ones help.

Install node.js and install the module globally with
npm install -g css-flip
Or
npm install -g git+https://github.com/twitter/css-flip.git
If you want to install from github.
You should then be able to run it from a command line.
css-flip in.css > out.css

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