【在ubuntu 执行指令时出现Could not get lock /var/lib/dpkg/lock-frontend. 的解决】

sudo apt install gcc
^Ziting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 4957 (unattended-upgr)... 8s

当出现此情况时，
执行

sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock*
sudo dpkg --configure -a
sudo apt update

成功解决实例