Subcommand help about cli HOT 2 CLOSED

app := cli.NewApp()
start := cli.Command{Name: "start"}
wait := cli.Command{Name: "wait"}
stop := cli.Command{
    Name:        "stop",
    Subcommands: []cli.Command{wait},
}
command := cli.Command{
    Name:        "server",
    Subcommands: []cli.Command{start, stop},
}
app.Commands = []cli.Command{command}
app.Run(os.Args)