generate key (simple)
gpg --gen-key
generate key (advaned)
gpg --full-gen-key
select (1) RSA and RSA (default)
enter 4096 for the key size
enter 2y for 2 years expiration
output key
gpg --armor --output key.txt --export [email protected]
list keys
gpg --list-keys
delete secret key
gpg --delete-secret-keys id-here
delete public key
gpg --delete-keys id-here