Recently I've switched from windows to linux (fedora).
I got used to fset my personal options in .Rprofile, now in linux systems each R project has his own .Rprofile.
I'm afraid I am going to forget to create the file when creating a new project, so I want to know if there is a way to create automatically the .Rprofile (replicating an existing one)
Per the documentation on Startup, you don't need to have a separate .Rprofile for each project:
So, if you don't put a .Rprofile in the working directory, then it will check the home directory -- or you can set the appropriate environment variable.
That said, it's worth reading this discussion of what does and doesn't belong in the .Rprofile, if you haven't previously: