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so i'm a newbie to Ubuntu..and i have a huge miss happening on my laptop right now pre-installed apps that came with ubuntu 13.04 were gone (i think something happened while updating them) tweaks and apps like terminal ubuntu software center are gone too so i tried to restart the PC thinking it will solve the problem but it gets worse when now i can't even find the unity dash or the bar on the top..i managed to make a new folder on the desktop and choose a random file and chose to run it with chromium that's and that's how i reached the what do i do ?

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You may try to delete the Software Centre Cache. Try to paste the command below on the terminal.

rm ~/.cache/software-center -R

Then you may want to reset unity to try to rebuild the cache.

unity --reset &
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when i put the first command in xterm it says no such file or directory and then when i put the second one it says "the program 'unity' is currently not installed you can install it by typing : sudo apt-get install unity so i do type it and type my password but then it says "unmet dependencies try 'apt-get-f install' with no packages or specify a solution {1}+ exit 127 unity --reset – You7Joe Oct 4 '13 at 2:25
then i type the above command and it runs somethings and then says E:couldn't open lock file /var/lib/dpkg/lock - open (13: permission denied) E: Unable to lock the administration directory (/var/lib/dpkg/), are you root ? then i type the same command with a "sudo" it runs some lines and then asks me if i'm sure that i want to continue type "Yes, do as i say!' and when i type says abort then nothing – You7Joe Oct 4 '13 at 2:28
Weird, how about change move the zeitgeist folder with mv ~/.local/share/zeitgeist ~/.local/share/zeitgeist.bak and then logout then login again? – Chester Oct 4 '13 at 6:38
actually i tried it again "the Yes, do as i say" command and it worked but it was removing things and when i restarted my PC to see the changes it booted me into the GNU Grub menu with 4 choices 1- ubuntu 2-advanced options for ubuntu 3-windows recovery environment (loader) (on /dev/sdb1) 4-system set-up the first choice always freezes on the reddish brown screen after the ubuntu logo and the second choice has 4 versions of ubuntu with linux genrics two with recovery and two without it and they all don't help now what can i do ? – You7Joe Oct 4 '13 at 7:07
You may be using the 3.8 kernel which usually is the culprit for bootup freezing issues. You may want to check on this : link – Chester Oct 4 '13 at 7:12

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