Encrypt decrypt

gpg --encrypt --recepient 'James Receiverson' foo.txt
gpg --decrypt foo.txt.gpg

Making keys

gpg --gen-key

Share your public key

# via file
gpg --armor --output pub.txt --export "Rico Sta. Cruz"

# via server
gpg --send-keys "Rico Sta. Cruz" --keyserver http://...

Key management

gpg --list-keys
gpg --delete-key 'email@addie'

See

• https://www.madboa.com/geek/gpg-quickstart/