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I am new to Ubuntu. I have installed Ubuntu 12.10 on a fujitsu amilo 1536 notebook, and it works just fine.

To extract a tar archive I need root privileges but I can't get them. I can't use sudo because the user I use is not in the sudoers file (although it's an administrator account) and i also can't edit the sudo list manually, because of insufficient privileges. root password is unknown to me as usual for Ubuntu.

Any idea how to handle this?

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"to extract a tar-archive i need root-privilegies" No you don't. What makes you think you need that? – gertvdijk Dec 30 '12 at 21:23
Not sure if it's a dupe but this may help? – Tom Brossman Dec 30 '12 at 21:24
Please indicate why you think you need root permission to extract the archive. As you are new to Ubuntu, I suspect that you are trying to do something that has a much easier way, such as installing a program. You can edit your post to give us more details, so we have a clearer idea of what you need. – Paddy Landau Dec 30 '12 at 22:59
@gertvdijk depends on the tar. If it automatically wants to install into /opt you do need sudo permissions. – Rinzwind Dec 30 '12 at 23:00

Welcome to Ubuntu. Gertvdijk is right, you should not need root privileges, however, you can run sudo to gain temporary root privleges in a terminal window, or if you want to do the thing graphically try this:

gksudo nautilus  

That will start the Nautilus with root like access. The password is the main user password you entered during the installation process.

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His questions states all kind of wrong information so the negs are correct. Though someone with 1 rep does not feel it so the negs are fairly pointless ;) and gksudo nautilus is a start to create a big mess and needs to be inserted in small letters. Use command line please. – Rinzwind Dec 30 '12 at 22:58
I am just trying to help the guy – jmacwill Dec 30 '12 at 23:03
oh we all want to. Better to have a newbie turn to Ubuntu than not have a newbie turn to Ubuntu. ;-) Plus we ALL had to learn it. @jmacwill – Rinzwind Dec 30 '12 at 23:04
That is true... Sorry I seem frustrated, I just asked a legit question and it got neged, and I did extensive research before I asked it.... I just hope everybody realizes these questions will get more and more frequent with the release of window 8. ;) – jmacwill Dec 30 '12 at 23:10

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