gruntjs - How to install Grunt plugin properly -

sorry, i'm newbie in npm-bower-grunt services. maybe question stupid, can't find solution in google.

so, have installed single page app based on npm/bower/grunt/angular.js

in root have gruntfile.js code

module.exports = function(grunt) { var gtx = require('gruntfile-gtx').wrap(grunt);  gtx.loadauto();  var gruntconfig = require('./grunt'); gruntconfig.package = require('./package.json');  gtx.config(gruntconfig);  // need our bower components in order develop gtx.alias('build:standardversion', [      'compass:standardversion',     ...  ]);  gtx.finalise(); 

};

else have file grunt/compass.js with:

module.exports = { standardversion: {     options: {         config: 'standard/master/config.rb'     } } 

};

then in bower_components folder have gruntfiles each plugin code like:

    'use strict';  module.exports = function(grunt) {     grunt.initconfig({         pkg: grunt.file.readjson('package.json'),          karma: {            ...         },          uglify: {            ...         }     });      grunt.loadnpmtasks('grunt-contrib-uglify');     grunt.loadnpmtasks('grunt-karma');      grunt.registertask('default', [         'karma',         'uglify'     ]); }; 

so have install css-flip plugin here https://www.npmjs.com/package/grunt-css-flip

i installed npm , don't know write task this. need create new file in bower_components or somewhere else?

please tell me or give me link understand properly

thanx