ubuntu安裝nginx，由於80端口已經被佔用，sudo apt-get install nginx安裝一半異常退出，報錯誤：
dpkg: error processing package nginx (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
nginx-core
nginx
E: Sub-process /usr/bin/dpkg returned an error code (1)
再往上查詢會看到錯誤
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
修復辦法：
1.將80端口解綁，已佔用的程序改用其他端口，將提示的錯誤解決後
2.運行以下命令卸載一半的安裝:
sudo apt-get remove nginx*
sudo apt-get autoremove
- sudo apt-get install nginx即可重新安裝