can you put opentype feature file into a font without using font software?

WAY KYI

I want to do as stated above for adding Opentype features into a font without having any installed font software.
This should be possible, right? Is there any website that will do it exactly as what I want or any command line program
to run with OT file with a Font either .TTF or .OTF format? Please let me know. Thanks

Simon Cozens

fontTools feaLib -o font-with-features.ttf features.fea font-without-features.ttf

Saurabh Sharma

Introduction to OpenType Programming by @Simon Cozens was very helpful to me. This, along with the source code and feature files of Open Source fonts will help in understanding OT programming environment and post production.

WAY KYI

Mr. Simon Cozens 

Thank you very much for the help, short but to the point. And thank for the documentation about Opentype. I admire you for not just your expertise but also your willingness to help other. 

Saurabh Sharma 

Thank a lot Sayrabh to the documents. Great docs for the OpenType feature implementation. Thanks