go-exec: debugging os/exec with interactive scripts

main.go

package main

import (
	"fmt"
	"os"
	"os/exec"
)

func die(v interface{}) {
	fmt.Fprintln(os.Stderr, v)
	os.Exit(1)
}

func main() {
	if len(os.Args) == 1 {
		die("usage: go-exec COMMAND [ARG...]")
	}
	cmd := exec.Command(os.Args[1], os.Args[2:]...)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	if err := cmd.Run(); err != nil {
		die(err)
	}
}