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https://www.unix.com/shell-programming-and-scripting/125947-difference-between-dev-null-2-1-2-1-dev-null.html https://superuser.com/questions/1179844/ 阅读全文
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https://unix.stackexchange.com/questions/230887/what-does-dev-null-mean https://stackoverflow.com/questions/29142/getting-ssh-to-execute-a-command-in- 阅读全文
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全世界最好的编辑器VIM之Windows配置篇 Highlight all search pattern matches Top 10 things Vi user need to know about Vim 阅读全文