old_contents: /*
   * getCommand(command, callback)
   * 
   * pass a Bash command to getCommand, and receive
   * the main parts of the relevant man page!
   *
   * © 2017 Team Pengo
   *
   * Authors: Khyati Kulshreshtha,
   *          Monyette Tanzillo,
   *          Claudio Gentile,
   *          Peter Martinson 
  */
  
  
  const request = require('request'),
        cheerio = require('cheerio'),
        baseURL = 'http://man.he.net/man1/';
  
  // get the command text from the URL
  var fetchCommand = function(command, callback) {
    var mainURL = baseURL + command;
    request(mainURL, function(error, response, html) {
      if (error) callback(error);
      var $ = cheerio.load(html);
      callback(null, $('pre').html());
    });
  }
  
  module.exports = function(command, callback) {
    fetchCommand(command, function(error, man) {
      if (error) callback(error);
  
      var commandArray = man.split('\n'),
          toc          = [],
          sections     = [];
  
      // create TOC numbers
      commandArray.forEach(function(element, index) {
        if ( /^[A-Z]/.test(element) ) {
          toc.push(index);
        }
      });
  
      // create TOC section labels
      toc.forEach(function(element) {
        sections.push(commandArray[element]);
      });
  
      function createSection(title) {
        return commandArray.filter(function(element, index) {
          var sectionIndex    = toc[sections.indexOf(title.toUpperCase())];
          var nextSectionIndex = toc[sections.indexOf(title.toUpperCase())+1];
          if ( index > sectionIndex && index < nextSectionIndex ) {
            return element;
          }
        }).join('\n');
      }
  
      callback(null, {
        synopsis    : createSection('synopsis'),
        description : createSection('description'),
        options     : createSection('options'),
        examples    : createSection('examples')
      });
    });
  }
  
  
new_contents: /*
   * getCommand(command, callback)
   * 
   * pass a Bash command to getCommand, and receive
   * the main parts of the relevant man page!
   *
   * © 2017 Team Pengo
   *
   * Authors: Khyati Kulshreshtha,
   *          Monyett Tanzillo,
   *          Claudio Gentile,
   *          Peter Martinson 
  */
  
  
  const request = require('request'),
        cheerio = require('cheerio'),
        baseURL = 'http://man.he.net/man1/';
  
  // get the command text from the URL
  var fetchCommand = function(command, callback) {
    var mainURL = baseURL + command;
    request(mainURL, function(error, response, html) {
      if (error) callback(error);
      var $ = cheerio.load(html);
      callback(null, $('pre').html());
    });
  }
  
  module.exports = function(command, callback) {
    fetchCommand(command, function(error, man) {
      if (error) callback(error);
  
      var commandArray = man.split('\n'),
          toc          = [],
          sections     = [];
  
      // create TOC numbers
      commandArray.forEach(function(element, index) {
        if ( /^[A-Z]/.test(element) ) {
          toc.push(index);
        }
      });
  
      // create TOC section labels
      toc.forEach(function(element) {
        sections.push(commandArray[element]);
      });
  
      function createSection(title) {
        return commandArray.filter(function(element, index) {
          var sectionIndex    = toc[sections.indexOf(title.toUpperCase())];
          var nextSectionIndex = toc[sections.indexOf(title.toUpperCase())+1];
          if ( index > sectionIndex && index < nextSectionIndex ) {
            return element;
          }
        }).join('\n');
      }
  
      callback(null, {
        synopsis    : createSection('synopsis'),
        description : createSection('description'),
        options     : createSection('options'),
        examples    : createSection('examples')
      });
    });
  }
  
  
subject: Update getCommand.js