voidstar0

/** @license Copyright (C) 2014-2019 PerimeterX, Inc (www.perimeterx.com). Content of this file can not be copied and/or distributed. **/
!function () {
  "use strict";

  try {
    atob;
  } catch (n) {
    var t = function (t) {
      var n = [],
          o = void 0,

asugai

$ cd ~
$ sudo curl -sS https://getcomposer.org/installer | sudo php
$ sudo mv composer.phar /usr/local/bin/composer
$ sudo ln -s /usr/local/bin/composer /usr/bin/composer

then you can run 
$ sudo composer install