Install multiple Node.js Modules based on dependencies (list)

I have a dependencies list of nearly 40 node modules and while I was able to install all of them using one (or two) commands-

npm install module-1 module-2 ... module-N --save-dev

-still looking for a way to create a file that installs all dependencies when executed. This way anyone could download a single file for his/her system (Mac / Linux in my case) and install all modules by simply running that file. Any great suggestion, method? Thanks a lot!