Se tudo o que você precisa é de uma lista de pacotes relacionados ao Nautilus, você pode obtê-lo facilmente com:
$ dpkg -l | grep nautilus
Por exemplo, para mim, retorna:
ii gir1.2-nautilus-3.0 1:3.10.1-0ubuntu9.2 amd64 libraries for nautilus components - gir bindings
ii libnautilus-extension1a 1:3.10.1-0ubuntu9.1 amd64 libraries for nautilus components - runtime version
ii nautilus 1:3.10.1-0ubuntu9.1 amd64 file manager and graphical shell for GNOME
ii nautilus-data 1:3.10.1-0ubuntu9.1 all data files for nautilus
ii nautilus-open-terminal 0.20-1 amd64 nautilus plugin for opening terminals in arbitrary paths
ii nautilus-pyextensions 3.0-1 all Handler of the Nautilus Python Extensions
ii nautilus-sendto 3.6.1-2ubuntu1 amd64 integrates Evolution and Pidgin into the Nautilus file manager
ii nautilus-sendto-empathy 3.8.6-0ubuntu9.1 amd64 GNOME multi-protocol chat and call client (nautilus-sendto plugin)
ii nautilus-share 0.7.3-1ubuntu5 amd64 Nautilus extension to share folder using Samba
ii python-nautilus 1.1-4 amd64 Python binding for Nautilus components
ii seahorse-nautilus 3.8.0-0ubuntu2 amd64 seahorse plugins and utilities for encryption in GNOME
Tentar adivinhar quais são plugins ou extensão é um pouco mais complexo:
dpkg -l | egrep -i 'nautilus.* (extension|plugin)'
Desta vez, ele retorna:
ii nautilus-open-terminal 0.20-1 amd64 nautilus plugin for opening terminals in arbitrary paths
ii nautilus-pyextensions 3.0-1 all Handler of the Nautilus Python Extensions
ii nautilus-sendto-empathy 3.8.6-0ubuntu9.1 amd64 GNOME multi-protocol chat and call client (nautilus-sendto plugin)
ii nautilus-share 0.7.3-1ubuntu5 amd64 Nautilus extension to share folder using Samba
ii seahorse-nautilus 3.8.0-0ubuntu2 amd64 seahorse plugins and utilities for encryption in GNOME