Delete a File inside a Folder

dear all,
I`m new with Github, and I had not success in delete a File which I created.
I deleted all information inside this file, but I can not delete it.
How to delete it? It was created inside a Folder.

thanks,

That depends on how you’re managing the repository: Via the Github website, on the command line, or with some local GUI tool?

On the command line use git rm, on the website there should be a trash can icon to right just above the file content if you open the file.