var/cache/apt/archives occupying huge space

I am in the process of cleaning up my system. And I see a lot of space occupied by this folder /var/cache/apt/archives (1.5GB). Is it absolutely necessary to keep all these archives?

You don‘t need to keep them around if you don‘t want them. Executing a

sudo apt-get clean

will clean out the directory.

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删除nginx，–purge包括配置文件

sudo apt-get --purge remove nginx

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自动移除全部不使用的软件包

sudo apt-get autoremove

列出与nginx相关的软件 并删除显示的软件

dpkg --get-selections|grep nginx

sudo apt-get --purge remove nginx
sudo apt-get --purge remove nginx-common
sudo apt-get --purge remove nginx-core

再次执行

dpkg --get-selections|grep nginx

which nginx # 不在显示nginx

这样就可以完全卸载掉nginx包括配置文件 
注意点：首先需要停止nginx的服务

sudo service nginx stop

ubuntu 卸载干净软件（包括配置文件）

原文：https://www.cnblogs.com/oxspirt/p/9017204.html