charlie@charlie-virtual-machine:~/work$ sudo apt-get install git

E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)

E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?

charlie@charlie-virtual-machine:~/work$ 

charlie@charlie-virtual-machine:~/work$

解決的辦法：

charlie@charlie-virtual-machine:~/work$ sudo rm /var/lib/dpkg/lock

charlie@charlie-virtual-machine:~/work$ sudo rm /var/lib/dpkg/lock-frontend 

charlie@charlie-virtual-machine:~/work$ 

charlie@charlie-virtual-machine:~/work$