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javascript - How to run interactive shell command inside node.js?

I have to run some interactive shell command inside node.js. Lets our interactive shell be $ python:

var cp = require('child_process');
var pythonChildProcess = cp.spawn('python');

pythonChildProcess.stdout.on("data", function(data) {
  console.log('data successfully written!', data); // never outputs anything
});

pythonChildProcess.stdin.write('1 + 1');
pythonChildProcess.stdin.end();

This code does not output anything (but stdout should be 2).

But if it would, there will be another problem: how to make it interactive? The process ends when I call pythonChildProcess.stdin.end();! But I just wanted to end stdin and write next stdin!

UPD: If I could emulate pressing of enter button - I would be able to interactively write to the process. But adding to the end of the input string does not help.

See Question&Answers more detail:os

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1 Answer

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by (71.8m points)

This works great for me:

const { spawn } = require('child_process')
const shell = spawn('sh',[], { stdio: 'inherit' })
shell.on('close',(code)=>{console.log('[shell] terminated :',code)})

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