package main import ( "fmt" "os" "strconv" "time" ) func main() { args := os.Args[1:] exitCode := 0 for i := 0; i < len(args); i++ { fmt.Fprintln(os.Stdout, args[i]) fmt.Fprintln(os.Stderr, args[i]) } if len(args) > 1 { num, _ := strconv.Atoi(args[1]) if args[0] == "exitcode" { exitCode = num } if args[0] == "sleep" { time.Sleep(time.Duration(num) * time.Second) } } os.Exit(exitCode) }