The Starbuntu program gsu (or gsudo, gksu, gksudo) is the graphical frontend of the terminal commands su or sudo and replaces with additional features the package gksu which has been removed by Ubuntu from the repositories.

You call this program by typing gsu [--no-error-msg] [<command>]. A window appears with three tabs: "Password" (active tab), "User" (lists every user known in the system with the current user as the active one) and "Command". To achieve the root state users belonging to the group sudo have to simply insert their password and confirm the input by leftclicking 'OK' or typing Ctrl+Return. Every user can temporarily also turn into another one by inserting the own password or the password of the other user and choosing him in the "User" tab. In the first case he keeps his own user environment, in the second case he adopts the other user's environment. So users who aren't members of the group sudo can nevertheless execute system commands if they insert the root password and choose 'root' as user.

The 'Command' tab allows to modify the inserted command. In case the command has been left empty, it's set 'xterm'. If the command cannot be executed, it gets executed with all-open. Please insert a chain of commands in the form [ba]sh -c \'command 1\; command 2\; ...\'.

If the parameter --no-error-msg is not set, in case of a wrong password or a wrong command a warning appears which offers to insert the password once more and possibly to correct the command.

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