you are using ubuntu so i am guessing that you DO have a desktop manager( KDE or Gnome) installed and are using a GUI
why not just double click on the tarball and have the archive manager open it ( file roller or ark )
just like you would on any other operating system
or use the right click context menu
r- click on the file ad select ark from the open with
just like on Microsoft or Apple
Last edited by John VV; 09-18-2011 at 04:28 PM.