Bottom Model :! 【not save the content】 :w 【save the content to file】 :wq 【save the content to file and exit the vim】 :! ifconfig 【execute shell command in vim 】 :s/x/X 【replace x to X i...

multimode of vim: I insert model N normal model C command model V visual modelde normal -> insert model i: focus in current position I: focus in first position of current line a: focus next in c...