nodeFunctions();

exec.js

const { exec } = require('child_process')

exec('ls -ltra', (error, stdout, stderr) => {
		if(error) {
			// if an error occurs during exec process
			console.error("Error", error.message);

			return;

		} else if(stderr) {
			// if exec ran but and error was generated
			console.error("Stderr", stderr)

		} else {

			// if exec ran successfully
			console.log("Output : ", stdout)

});

spawn.js

const { spawn } = require('child_process')

const ls = spawn("ls" , ["-ltra", "."])

	ls.stdout.on("data" , data => {

		console.log(`stdout , ${data}`)

	})

	ls.stderr.on("data" , data => {

		console.log(`stderr ${data}`)

	})

	ls.on("error", error => {

		console.error(`error, ${error.message}`)

	})

	ls.on("close", code => {

		console.log(`Process exited with code , ${code}`)

	})