apt-dater provides an ncurses frontend for managing package updates on a large number of remote hosts using SSH. It
supports Debian-based managed hosts as well as rug
(openSUSE) and Yum (CentOS) based systems.
gpgkeymgr is a tool for cleaning up and managing your GnuPGP key ring. It removes old and unnecessary keys according to user-specified criteria. For example, you can remove all expired or revoked keys, or all keys you don't trust, and much more.