I was installing an item using package manager when it froze. I used Alt + F2 to close it.
Afterwards, whenever I try to install anything via apt-get, the terminal reads:
E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)
E: Unable to lock directory /var/lib/apt/lists/
How do I unlock /var/lib/apt/lists/?
