Publish your public key

Change directories cd to your public USB, in my case it's called PUBLIC and is located at /media/PUBLIC

[email protected]:/~$ cd /media/PUBLIC

Then run sudo gpg2 --armor --export [email protected] >> 2F95015B-public.asc, replacing your user ID and fingerprint where appropriate.

[email protected]:/media/PUBLIC$ sudo gpg2 --armor --export [email protected] >> 2F95015B-public.asc

If you then ls the directory to list all files, you should see your new public key.

[email protected]:/media/PUBLIC$ 2F95015B-public.asc

Now move your public USB to your everyday computer and import it. If you're on OS X with GPG Tools installed, or on Linux with GPG installed the following command will work: