[Linux 文章收集] How to change visudo editor from nano to vim? (Ubuntu)

Source From Here 
Question 
When I use visudo, it always opens it with nano editor. How to change the editor to vim? 

How-To 
Type sudo update-alternatives --config editor 

You will get a text like below. 

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1. There are 4 choices for the alternative editor (providing /usr/bin/editor).  
2.   
3.   Selection    Path                Priority   Status  
4. ------------------------------------------------------------  
5. * 0            /bin/nano            40        auto mode  
6.   1            /bin/ed             -100       manual mode  
7.   2            /bin/nano            40        manual mode  
8.   3            /usr/bin/vim.basic   30        manual mode  
9.   4            /usr/bin/vim.tiny    10        manual mode  
10.   
11. Press enter to keep the current choice[*], or type selection number: 3  

Find vim.basic or vim.tiny selection number. Type it and press enter. Next time when you open visudo your editor will be vim