https://help.github.com/en/articles/generating-a-new-gpg-key
$ gpg --full-generate-key
$ gpg --list-secret-keys --keyid-format LONG
$ gpg --armor --export 4B7437C056F503BA
$ gpg --delete-secret-keys EF810E34728E5278
https://help.github.com/en/articles/generating-a-new-gpg-key
$ gpg --full-generate-key
$ gpg --list-secret-keys --keyid-format LONG
$ gpg --armor --export 4B7437C056F503BA
$ gpg --delete-secret-keys EF810E34728E5278
https://help.github.com/en/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent
$ ssh-keygen -t rsa -b 4096 -C "[email protected]"
$ eval "$(ssh-agent -s)"
$ ssh-add ~/.ssh/id_rsa
$ xclip -sel clip < ~/.ssh/example.pub