[Go] Command Input

main.go

package main

import(
	"log"
	"os/exec"
	"os"
	"io"
)

func main() {
	process := exec.Command("vi", "/Users/fengyfei/Space/Github/Go/sample/a.txt")

	process.Stdout = os.Stdout

	stdin, err := process.StdinPipe()
	if err != nil {
		log.Fatal(err)
	}

	if err = process.Start(); err != nil {
		log.Fatal(err)
	}

	io.WriteString(stdin, "i");
	io.WriteString(stdin, "hello");
	stdin.Write([]byte{27})
	io.WriteString(stdin, ":wq\n")

	if err = process.Wait(); err != nil {
		log.Fatal(err)
	}
}