sudo apt-get update; apt-show-versions | grep -Ev '(uptodate|not installed)$'
Hit:1 http://archive.ubuntu.com/ubuntu xenial InRelease
Get:2 http://security.ubuntu.com/ubuntu xenial-security InRelease [94.5 kB]
Hit:3 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Get:4 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease [95.7 kB]
Hit:5 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease
Fetched 190 kB in 1s (157 kB/s)
Reading package lists... Done
openfoam4:amd64 0-1 installed: No available version in archive
paraviewopenfoam50:amd64 0-1 installed: No available version in archive