gpg --list-secret-key --keyid-form LONG
gpg --full-generate-key
# para deletar: gpg --delete-secret-and-public-key [key_id]
gpg --armor --export [key_id]
git config --global user.signingkey [key_id]
export GPG_TTY=$(tty)
nano ~/.gnupg/gpg.conf
# add 'use-agent'
gpgconf --launch gpg-agent