package commands import ( "fmt" "github.com/docker/machine/cli" ) func cmdActive(c *cli.Context) { if len(c.Args()) > 0 { fatal("Error: Too many arguments given.") } store := getStore(c) host, err := getActiveHost(store) if err != nil { fatalf("Error getting active host: %s", err) } if host != nil { fmt.Println(host.Name) } }