encrypt linux backup folder using gpg

[Francesco Ariis]

On Wed, Nov 07, 2018 at 08:56:53AM +0530, Kaushal Shriyan wrote:
> Thanks Francesco for the email. I have encrypted the file using my gpg key. How
> do i share the encrypted helloworld.gpg file to the recipients. For example
> john at example.com.  Do I need to encrypt the file to the recipients id using
> gpg pub key? Any examples to understand it better. Please comment.

-r is for recipient! You should have the id/mail of your friend there!