Try this http://stackoverflow.com/a/15485424/947885

--
Alan Hoffmeister
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2014-10-31 2:13 GMT-02:00 Kevin Ingwersen (Ingwie Phoenix)
<[email protected]>:
> So, all unix users know this:
>
>     cat myfile | ./someProg
>
> someProg assumes its data to come to STDIN and wouldn’t take other arguments. 
> But, how do we do that in NodeJS? Imagine we have the contents of myfile and 
> just want to spawn a child process of someProg…but then? How do I feed it the 
> stuff it expects?
>
> Kind regards, Ingwie
>
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