exec (async)

Node.js

const { exec } = require('child_process')
exec(`echo 'hello world'`, (error, stdout, stderr) => {
  if (error) {
    console.error(err)
  }
  if (stderr) {
    console.error(stderr)
  }
  if (stdout) {
    console.log(stdout)
  }
})

Output

hello world

Go

package main
import (
    "os"
    "os/exec"
)
func main() {
    cmd := exec.Command("echo", "hello world")
    cmd.Stdout = os.Stdout
    cmd.Stderr = os.Stderr
    cmd.Run()
}

Output

hello world