gpg --import

gpg --import server.key
gpg: directory '/root/.gnupg' created
gpg: keybox '/root/.gnupg/pubring.kbx' created
gpg: /root/.gnupg/trustdb.gpg: trustdb created
gpg: key BAEDF81779917ABA: public key "Password Server for YOUR_COMPANY LLC <[email protected]>" imported
gpg: Total number processed: 1
gpg:               imported: 1

Man

https://www.gnupg.org/documentation/manpage.html

--import [ files ], --fast-import [ files ]
Import/merge keys. This adds the given keys to the keyring. The fast version does not build the trustdb; this can be done at any time with the command --update- trustdb.

There are a few other options which control how this command works. Most notable here is the --merge-only options which does not insert new keys but does only the 
merging of new signatures, user-IDs and subkeys.

Related

• gpg --list-keys
• gpg --export
• gpg --encrypt

See also

• Passbolt, passbolt find
• gpg, --batch | --generate-key | --full-generate-key | --recv-keys | --export | --encrypt | --import | --list-keys | --list-secret-key | --gen-key | --armor | --dearmor | --send-keys | --search-keys | --quick-set-expire | --keyserver | --delete-keys | --full-generate-key | --armor --export | gpg --help
• GNU Privacy Guard (GPG), gpg, gpg-agent, gpg-suite, GPGAuth, gpg --help, ~/.gnupg/