"Open in Terminal" in Ubuntu 18.04

Does the package nautilus-extension-gnome-terminal provide what you want?

Method of determining the new package (in case it's of interest)

I'm still on Xenial, which made some things easier, some harder.

First, try to determine what specific file (i.e. script, linked library or the like) is responsible for the feature on Xenial. The name of the file is likely to contain terminal so search for that:

locate terminal | less

and within less search for nautilus, as a first guess (if I were more confident I'd have just used grep).

/usr/lib/nautilus/extensions-3.0/libterminal-nautilus.so seems the most likely candidate, as it's correctly located (within the nautilus/extensions-3.0 hierarchy) and reasonably named.

Check what package provides it:

dpkg -S /usr/lib/nautilus/extensions-3.0/libterminal-nautilus.so

It seems that it's provided by the package gnome-terminal itself (which matches what I remember — I didn't have to install any special packages).

The online list of files provided by the gnome-terminal package corroborates this:

https://packages.ubuntu.com/xenial/amd64/gnome-terminal/filelist

Unfortunately, /usr/lib/nautilus/extensions-3.0/libterminal-nautilus.so is no longer provided by gnome-terminal in bionic:

https://packages.ubuntu.com/bionic/amd64/gnome-terminal/filelist

If I had access to a machine running bionic (or could be bothered fiddling with the options for apt-file to use an alternative sources.list, I'd have used:

apt-file search /usr/lib/nautilus/extensions-3.0/libterminal-nautilus.so

to find the package providing the file.

As it is, I just used the online interface at packages.ubuntu.com.

To check, nautilus-extension-gnome-terminal does provide the needed file on bionic.

sudo apt install nautilus-admin Adds some administrative actions to the right-click menu:

Open as Administrator.

Edit as Administrator.

Open in terminal.

Hope this help you