nautilus - How can I create new "gksu" command based on pkexec? - Ask Ubuntu

when google “gksu gedit” 1 of top entries (how run gedit , nautilus root) advises gksu usage frowned upon:

gksu hasn't been updated since 2009 , is not recommendedany more. in fact, ubuntu no longer ships with gksu by default (though may installed many of you, because apps still depend on it) , may removed @ point.

a link askubuntu (why gksu no longer installed default?) suggests pkexec should used instead doesn't provide clear , concise steps this.

how can use pkexec within new wrapper shell script called gsu supports both gedit , nautilus?

i feel wrapper script called gsu appropriate because "muscle memory" type gksu time , don't want have type pkexec instead.

additionally pesky gtk warning messages disappear. terminal prompt right away instead of waiting editor or file manager end.

au duplicates: i've searched many q&a none asking (or offering how to) give complete solution gsu wrapper script call pkexec , install necessary policy kits , rid of pesky gtk warnings , terminal prompt right away... in 1 answer.

before can use pkexec gedit , nautilus need copy polkit rules support them. automatically done in ubuntu 17.04 in mean time need wget them.

nautilus policy kit

wget https://raw.githubusercontent.com/hotice/webupd8/master/org.gnome.nautilus.policy -o /tmp/org.gnome.nautilus.policy sudo cp /tmp/org.gnome.nautilus.policy /usr/share/polkit-1/actions/ 

gedit policy kit

wget https://raw.githubusercontent.com/hotice/webupd8/master/org.gnome.gedit.policy -o /tmp/org.gnome.gedit.policy sudo cp /tmp/org.gnome.gedit.policy /usr/share/polkit-1/actions/ 

"gsu" bash script replace "gksu"

creating bash script 1 of 2 ways call pxexec using familiar term of gsu. create file in 1 of paths:

#!/bin/bash  # usage: gsu gedit file1 file2... #  -or-  gsu natuilus /dirname  # & used spawn process , prompt asap # > /dev/null used send gtk warnings dumpster  command=$1 # extract gedit or nautilus  pkexec "$command" "${@:2}" &> /dev/null& 

save file , mark executable chmod +x gsu

now instead of typing gksu edit grub configuration can use:

gsu gedit /etc/default/grub 

"gsu" alias of "pkexec" replace "gksu"

creating alias second option call pxexec using familiar term of gsu. open file ~/.bashrc , search alias. see this:

# more ls aliases alias ll='ls -alf' alias la='ls -a' alias l='ls -cf' 

after last line add this:

alias gsu='pkexec' 

save file , exit.