bot.js

var Discord = require("discord.js");
var fs = require('fs');

// Initialize Discord Bot
const bot = new Discord.Client();
function getRandomInt(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min)) + min; //The maximum is exclusive and the minimum is inclusive
}

bot.on('ready', () => {
  console.log('I am ready!' );
  bot.channels.get('389275550767775745').guild.members.get(bot.user.id).setNickname("ShawnLovesDick");
});
bot.on('message', message => {
    var sender = message.author.username;
    console.log(sender);
    if ( sender.toLowerCase == "plumpcats" ) {
        message.reply("shut up");
    }
    var content = message.cleanContent;
    if (content.split(' ')[0] == 'shawnsuckshugedick') {
        var args = content.split(' ');
        var cmd = args[1];
        args = args.splice(1);
        if ( args.join(' ') == 'say hi to me' ) {
            message.reply("Hi");
        }
        switch (cmd) {
            case 'add':
                message.reply("Added " + args[1] + " to rotation");
                fs.writeFile("./db.txt", args[1]+"\n", { flag: 'a' }, function(err) {
                    if(err) {
                        return console.log(err);
                    }
                    console.log("The file was saved!");
                });

            break;
            case 'list':
                var content =  fs.readFileSync('./db.txt').toString().split('\n');
                for(var i=0; i<content.length; i++){
                    if ( content[i] == "" ) {
                        continue;
                    }
                    message.reply(i + ": " + content[i] );
                }
            break;
            case 'random':
                var content =  fs.readFileSync('./db.txt').toString().split('\n');
                message.reply("we'll get a randokm thing from this: " + content[getRandomInt(0,content.length)]);
            break;
            case 'help':
                message.reply("You need help?! Don't we all.");
                message.reply("------------------ Just a friendly reminder ----------------");
                message.reply("                          Shawn sucks dick!!!                      ");
                message.reply(" Commands so far are, shawnsuckshugedick add, shawnsuckshugedick list, shawnsuckshugedick random, shawnsuckshugedick help");
                break;
        }
    }
});