apt-show-versions

Definition: apt-show-versions: Lists available package versions with distribution apt-show-versions parses the dpkg status file and the APT lists for the installed and available package versions and distribution and shows upgrade options within the specific distribution of the selected package. This is really useful if you have a mixed stable/testing environment and want to list all packages which are from testing and can be upgraded in testing. From Debian 3.0r0 APT

* Linux/Unix/Computing Glossary