今天在ubuntu机器中发现了刚装了的系统居然有个叫unattended-upgrade的程序一直占用100%的cpu，那必须得杀！

直接 sudo kill -9 PID好像行不通

更改config file /etc/apt/apt.conf.d/20auto-upgrades

sudo dpkg-reconfigure -plow unattended-upgrades

设置 APT::Periodic::Unattended-Upgrade 为 “0”

cat /etc/apt/apt.conf.d/20auto-upgrades

然后再 kill -9 pid 应该就能杀死了