xdg-su — run a program as root after prompting for the root password
xdg-su provides a graphical dialog that prompts the user for a password
or as root if no user was specified.
xdg-su is for use inside a desktop session only.
user. The default is to run as root.
An exit code of 0 indicates success while a non-zero exit code indicates failure. The following failure codes can be returned: