def configure(*)
      if options[:help]
        invoke :help, ['configure']
      else
        require_relative 'commands/configure'
        RubyEdit::Commands::Configure.new(options).execute
      end
    end
def configure(*)
      if options[:help]
        invoke :help, ['configure']
      else
        require_relative 'commands/configure'
        RubyEdit::Commands::Configure.new(options).execute
      end
    end
Set and view configuration options

 # editor [-e --editor]
 ruby-edit configure --editor
 => vim
 ruby-edit configure --editor emacs
 => emacs

 # grep options [-o --grep_options]
 ruby-edit configure --grep_options
 => irn
 ruby-edit configure --grep_options h
 => Hn