As far as I can say, based on what I know and have experienced:
sudo
is used for command line applications/commands and gksudo
is useful when you try to run a program using the Run Application dialog window by pressing Alt+F2.
I have read that gksudo
is just the graphic version of sudo
.
Anyway, you can both drop sudo nautilus
and/or gksu nautilus
in a terminal for the purpose to do what you wish, having the same effect both commands. But if you want to omit the terminal and you wish to run it directly with the "Run Application" dialog window, just press Alt+F2 and write gksu nautilus
, after which you will be prompted to enter your password, then the nautilus file browser will open with root privileges.
Additionally, you can achieve to open files/folders as root with a single click by using the "Open as Administrator" option via right click. Which in any case will open a new nautilus instance for the given folder and will open files as root, this may also open/run applications as root but I haven't tested it yet.
You can get the "Open as Administration" option in your contextual menu by installing nautilus-gksu via command line: sudo apt-get install nautilus-gksu
or by using synaptic as shown in the next image:
Good luck!
Pasting paths into Nautilus' "address" bar
You can activate the "location" view with CTRL+L. To permanently show the path instead of "breadcrumbs" you will have to manually change a dconf key:
gsettings set org.gnome.nautilus.preferences always-use-location-entry true
To revert the changes simply execute the following command:
gsettings set org.gnome.nautilus.preferences always-use-location-entry false
Copying file paths in the Save/Open dialog with Nautilus 3.4.2
As @AliNa pointed out, it used to be that you could access the location of a file or folder in the save/open dialog in the same manner as you can in a regular Nautilus window
This feature has been abolished in recent Nautilus releases as part of GNOME's design philosophy.
However, you can still access the file and directory paths from the context menu:
It seems as though this method has been removed as well in more recent revisions of Nautilus (the ones that ship with Ubuntu >12.10)...
Sources:
How can I copy the current path from Nautilus?
Typing location path instead of clicking directory buttons in the file picker dialog?
How do I change dconf keys without a gui (for a post-install script)?
Best Answer
There was a dialogue with the nautilus developers late 2010 but it fizzled out without a conclusion.
The developers said that the current nautilus infrastructure does not allow for the integration of ultracopier with nautilus.
It was mentioned, it should be possible via nautilus scripts - but those scripts cannot be invoked via keyboard - only via the nautilus menu.
Thus to answer the question - no - and not very likely.