/.
/etc
/etc/apt
/etc/apt/trusted.gpg.d
/etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg
/etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg
/usr
/usr/share
/usr/share/doc
/usr/share/doc/ubuntu-keyring
/usr/share/doc/ubuntu-keyring/changelog.gz
/usr/share/doc/ubuntu-keyring/copyright
/usr/share/keyrings
/usr/share/keyrings/ubuntu-archive-keyring.gpg
/usr/share/keyrings/ubuntu-archive-removed-keys.gpg
/usr/share/keyrings/ubuntu-cloudimage-keyring.gpg
/usr/share/keyrings/ubuntu-cloudimage-removed-keys.gpg
/usr/share/keyrings/ubuntu-master-keyring.gpg