Apt-get broken after termination in mid-install

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http://askubuntu.com – Long story short, I tried installing something via apt-get install and accidentally terminated the process through terminal. I now can't use apt-get install, Ubuntu Software Center, etc. I tried running sudo apt-get clean and sudo apt-get autoclean, but to no avail. I then tried running sudo apt-get install -f, and got the following results: Do you want to continue [Y/n]? y debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable (Reading database ... 216122 files and directories currently installed.) Preparing to replac (HowTos)