pub type Command<'help> = App<'help>;Expand description
Build a command-line interface.
This includes defining arguments, subcommands, parser behavior, and help output.
Once all configuration is complete,
the Command::get_matches family of methods starts the runtime-parsing
process. These methods then return information about the user supplied
arguments (or lack thereof).
When deriving a Parser, you can use
CommandFactory::command to access the
Command.
- Basic API
 - Application-wide Settings
 - Command-specific Settings
 - Subcommand-specific Settings
 - Reflection
 
Examples
let m = Command::new("My Program")
    .author("Me, me@mail.com")
    .version("1.0.2")
    .about("Explains in brief what the program does")
    .arg(
        Arg::new("in_file")
    )
    .after_help("Longer explanation to appear after the options when \
                 displaying the help information from --help or -h")
    .get_matches();
// Your program logic starts here...