Looking at the man pages, `gksu` and `gksudo` was always a option for running graphical apps with elevated privileges as `sudo` will give root privileges but will retain current user environment. Upstream offered a PolicyKit based gksu https://wiki.gnome.org/action/show/Apps/Attic/gksu?action=show&redirect=gksu as a better option, however due to not being maintained and having open CVEs for long time, after 12.04, gksu-polkit package was dropped https://bugs.launchpad.net/ubuntu/+source/gksu-polkit/+bug/1172339. So, options are: a) $ gksudo pluma
b) $ sudo -i # pluma
c) $ sudo su - root # pluma
Looking at the man pages, `gksu` and `gksudo` was always a option for running graphical apps with elevated privileges as `sudo` will give root privileges but will retain current user environment. /wiki.gnome. org/action/ show/Apps/ Attic/gksu? action= show&redirect= gksu as a better option, however due to not being maintained and having open CVEs for long time, after 12.04, gksu-polkit package was dropped https:/ /bugs.launchpad .net/ubuntu/ +source/ gksu-polkit/ +bug/1172339.
Upstream offered a PolicyKit based gksu https:/
So, options are:
a)
$ gksudo pluma
b)
$ sudo -i
# pluma
c)
$ sudo su - root
# pluma