How can I install nautilus-gksu?

nautilus-gksu don't work anymore for a long time since version 12.04 of Ubuntu.

In replace for this use "Nautilus Admin" extension where is available in the official Ubuntu repositories:

sudo apt-get install nautilus-admin

What it do?

Runs Nautilus As Root for any folder and for files open as root with gedit

How to use?

Inside Nautilus, Right-click on any Nautilus file/folder and then Open as Administrator/Edit as Administrator

Apparently nautilus-gksu has not been in the Ubuntu repositories since 12.04.

I got the below from: http://www.upubuntu.com/2012/09/open-files-and-folders-as-root-from.html

sudo apt-add-repository ppa:upubuntu-com/ppa
sudo apt-get update
sudo apt-get install nautilus-gksu

Then restart nautilus with this command:

nautilus -q

I didn't try this myself, and don't know if there's a better repository to add than upubuntu; it's also supposed to be available from the Linux Mint repositories from my quick Google search. If you Google for alternates, I would recommend limiting the results to the last year, to avoid obsolete references.

In Ubuntu 18.04 you cannot use nautilus-gksu anymore.

Alternative way to use a gksu command is to alias it as follows:

function __gksufn() {
  "$1" admin://"$2"
}

export alias gksu=__gksufn

In this way you can open files as gksu gedit /path/to/your/file.txt