SHELL/VIM删除重复行(去重)text handle
vim 删除重复行 - 国内版 Bing
https://cn.bing.com/search?FORM=U227DF&PC=U227&q=vim+%E5%88%A0%E9%99%A4%E9%87%8D%E5%A4%8D%E8%A1%8C
SHELL/VIM删除重复行(去重) - zjbzwhwhz的博客 - CSDN博客
https://blog.csdn.net/zjbzwhwhz/article/details/53652740
$ cat info.txt | sort | uniq
vim删除重复行 (走过弯路的人血泪总结) - sasake的专栏 - CSDN博客
https://blog.csdn.net/sasake/article/details/7170958
VIM删除重复行 - 岁月长河 - 博客园
https://www.cnblogs.com/air-of-code/p/4703005.html