"Getopt::Auto" is happy for you to use "long" ("--gnu-style"), "short"
("-oldstyle") or even "bare" command names, ("myprogram edit foo.txt",
CVS-style) on the condition that you are consistent. Additionally, if
you use bare or long style commands, then any short options passed
before a command name will be sent into %main::options. For instance,
given

  use Getopt::Auto (
    "edit" => "open a file for editing",
    "export" => "write out the data as an ASCII file"
  );

"yourprog -vt edit -x foo.txt" will perform the following:

  $main::options{v} = 1
  $main::options{t} = 1
  edit("-x", "foo.txt");