意外删除了var / lib中的一些文件

Question

I accidentally deleted some files in var/lib. I don't know what I have deleted. Terminal too then disappeared since I messed up with Gnome-Purge. I then reinstalled terminal using TTY. But then when I try to install some package, Unmet dependencies 'Try apt-fix broken install' with no package name. I do not want to reinstall Ubuntu. Also I tried `sudo apt-get install -f. It returned:

I was able to find what packages are corrupt by doing sudo dpkg -C . The result is:

Answer 1

Try to reinstall ubuntu-desktop metapackage:

sudo apt-get install –reinstall ubuntu-desktop
sudo apt-get build-dep ubuntu-desktop

This will install again all the base system and dependencies without needing to format your computer. If you're using a flavor such as Xubuntu, just replace ubuntu-desktop with the corresponding metapackage, like xubuntu-desktop, kubuntu-desktop, etc.