01-14-2008
what you are trying to do is run the commands in red with root permissions?
when you wrote "sudo su" what happens is that the "su" command runs with root permissions and opens you a new shell. if you quit this shell your script will finish it execution.
you should use the sudo command for each command you want to run with root permissions.
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XDG-SU(1) XDG-SU(1)
NAME
xdg-su - run a GUI program as root after prompting for the root password
SYNOPSIS
xdg-su [-u user] -c command
xdg-su {--help --manual --version}
DESCRIPTION
xdg-su provides a graphical dialog that prompts the user for a password to run command as user or as root if no user was specified.
xdg-su is for use inside a desktop session only.
xdg-su discards any stdout and stderr output from command.
OPTIONS
-u user
run command as user. The default is to run as root.
--help Show command synopsis.
--manual
Show this manualpage.
--version
Show the xdg-utils version information.
EXIT CODES
An exit code of 0 indicates success while a non-zero exit code indicates failure. The following failure codes can be returned:
1 Error in command line syntax.
2 One of the files passed on the command line did not exist.
3 A required tool could not be found.
4 The action failed.
SEE ALSO
su(1)
EXAMPLES
xdg-su -u root -c "/opt/shinythings/bin/install-GUI --install fast"
Runs the /opt/shinythings/bin/install-GUI command with root permissions.
AUTHOR
Kevin Krammer, Jeremy White.
<kevin.krammer@gmx.at>
<jwhite@codeweavers.com>
This is release 0.5 of the xdg-su Manual 07/31/2006 XDG-SU(1)