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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刪除nginx，–purge包括配置文件

sudo apt-get --purge remove nginx

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自動移除全部不使用的軟件包

sudo apt-get autoremove

列出與nginx相關的軟件 並刪除顯示的軟件

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
 

再次執行

dpkg --get-selections|grep nginx

which nginx # 不在顯示nginx

這樣就可以完全卸載掉nginx包括配置文件
註意點：首先需要停止nginx的服務

sudo service nginx stop

ubuntu 卸載幹凈軟件（包括配置文件）