bash: npm: command not found

Question

I'm learning Sass. Downloaded the starter pack. Unpacked. Git bashed the folder. Tried 'npm install'. Got an error:
bash: npm: command not found
How do I go about this?

Answer 1

It's working, man. Thanks.

Answer 2

Have you tried following the steps on npm's website?
https://www.npmjs.com/get-npm

Answer 3

Saw this site, but I'm not yet familiar with Node.

Answer 4

I've installed Node, but still the same.

Answer 5

Are you using mac or windows?