package main import ( "fmt" "github.com/dotcloud/docker/pkg/flag" ) var ( i int str string b, h bool ) func init() { flag.BoolVar(&b, []string{"b"}, false, "a simple bool") flag.IntVar(&i, []string{"#integer", "-integer"}, -1, "a simple integer") flag.StringVar(&str, []string{"s", "#hidden", "-string"}, "", "a simple string") //-s -hidden and --string will work, but -hidden won't be in the usage flag.BoolVar(&h, []string{"h", "#help", "-help"}, false, "display the help") flag.Parse() } func main() { if h { flag.PrintDefaults() } fmt.Printf("%s\n", str) fmt.Printf("%s\n", flag.Lookup("s").Value.String()) }