package main import ( "errors" "fmt" "os" "os/exec" "syscall" ) var ( ErrNoCommandSpecified = errors.New("No command specified") ) func main() { var ( args = os.Args[1:] ) checkErr(checkNetwork()) if len(args) == 0 { checkErr(ErrNoCommandSpecified) } binary, err := exec.LookPath(args[0]) checkErr(err) checkErr(syscall.Exec(binary, args, os.Environ())) } func checkErr(err error) { if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(1) } }