【Linux】neocomplcache disabled: "sudo vim" is detected and $HOME is set to your user's home

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1、问题描述

使用sudo vim时，弹出提示：

neocomplcache disabled: "sudo vim" is detected and $HOME is set to your user's home. 
You may want to use the sudo.vim plugin, the "-H" option with "sudo" or set always_set_home in /etc/sudoers instead.
Press ENTER or type command to continue

2、解决方法

1）使用sudo -H vim test.txt，此时不会再弹出警告，但是用户的vim配置都不能使用了
2）使用vim test.txt直接编辑，保存时，使用

 :w ! sudo tee %

然后会提示输入sudo密码，回车后，弹出

W12: Warning: File "test.txt" has changed and the buffer was changed in Vim as well
See ":help W12" for more info.
[O]K, (L)oad File:

直接回车，然后!q强制退出

:q!