class EacRubyUtils::Envs::Command

def command(options = {})
  c = @command
  c = c.map { |x| escape(x) }.join(' ') if c.is_a?(Enumerable)
  append_command_options(
    @env.command_line(
      append_chdir(append_concat(append_envvars(c)))
    ),
    options
  )
end