Copy a line below and then click on bash terminal window and press insert key.

gulp-modules.txt

npm install gulp --save-dev
npm install browser-sync --save-dev
npm install gulp-autoprefixer --save-dev
npm install gulp-changed --save-dev
npm install gulp-combine-media-queries --save-dev
npm install gulp-concat --save-dev
npm install gulp-debug --save-dev
npm install gulp-filter --save-dev
npm install gulp-header --save-dev
npm install gulp-newer --save-dev
npm install gulp-notify --save-dev
npm install gulp-plumber --save-dev
npm install gulp-rename --save-dev
npm install gulp-rimraf --save-dev
npm install gulp-sass --save-dev
npm install gulp-sourcemaps --save-dev
npm install gulp-uglify --save-dev
npm install gulp-uglifycss --save-dev
npm install gulp-wait --save-dev

// Install all modules at once, use this

npm install gulp browser-sync gulp-autoprefixer gulp-changed gulp-combine-media-queries gulp-concat gulp-debug gulp-filter gulp-header gulp-newer gulp-notify gulp-plumber gulp-rename gulp-rimraf gulp-sass gulp-sourcemaps gulp-uglify gulp-uglifycss --save-dev