optparser = OptionParser.new do |opts|
  opts.banner = "Usage: #{File.basename(__FILE__)} [options] target command"
  opts.on("--[no-]smbv1", "Enable or disable SMBv1 (default: #{options[:smbv1] ? 'Enabled' : 'Disabled'})") do |smbv1|
    options[:smbv1] = smbv1
  end