SEPARATE:

npm install gulp -g
npm install gulp-jsonminify --save-dev
npm install gulp-less --save-dev
npm install gulp-minify --save-dev
npm install gulp-rename --save-dev
npm install babel-cli --save-dev
npm install gulp-babel babel-preset-env --save-dev

TOGETHER:

npm install gulp -g
npm install gulp-jsonminify gulp-less gulp-minify gulp-rename babel-cli gulp-babel babel-preset-env --save-dev

LINKS:

https://gulpjs.com/
https://babeljs.io/

https://www.npmjs.com/package/gulp-babel
https://www.npmjs.com/package/gulp-minify
https://www.npmjs.com/package/gulp-less
https://www.npmjs.com/package/gulp-jsonminify
https://www.npmjs.com/package/gulp-rename