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I am currently running Ubuntu Gnome 14.04. I wanted to stop users from changing their wallpaper, so i followed this guide: How to block the desktop background from being changed?

After I ran the first command, all windows in my session closed, then the terminal closed. I logged out and logged back in and still couldn't do anything. So I logged in as root and tried running the second command. The terminal comes back with a message saying the file doesn't exist. I browsed to /usr/bin and the file is not there. What do I do? I can only login as root(and I don't want to do that) Is there a way for me to retrieve that file? Can someone upload their unmodified file so that I could place the file back and chmod it to 755? I need some quick help as I will soon need my account for a school presentation.

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  • Why do you need to block it changing?
    – Tim
    Jun 7, 2015 at 8:36
  • Umm the command you ran there was wrong, you have changed the permissions of all of /usr, all of /usr/bin and so on...
    – Tim
    Jun 7, 2015 at 8:37
  • Thats not the point I don't care about locking the wallpaper anymore. I just want to fix what I messed up
    – baduhai
    Jun 7, 2015 at 8:38
  • I don't think you can, that command was bad.
    – Tim
    Jun 7, 2015 at 8:41
  • I fixed it. I ran 'chmod 755 /usr && chmod 755 /usr/bin' (as root). Thanks Tim, even though you didn't tell me how to fix it you told me that /usr and /usr/bin were set to permission 744.
    – baduhai
    Jun 7, 2015 at 9:07

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OPs answer:

I fixed it. I ran chmod 755 /usr && chmod 755 /usr/bin (as root). Thanks Tim, even though you didn't tell me how to fix it you told me that /usr and /usr/bin were set to permission 744.

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