Usage of global replacement command in vim editor

The syntax is:[addr]s/source string/destination string/[option]

The global replacement command is::%s/source string/destination string/g

[addr] indicates the search range, and when omitted, it indicates the current line.

For example: "1,20": indicates from line 1 to line 20;

"%": indicates the entire file, the same as "1,$";

".,$": from the current line to the end of the file;

s: represents the replacement operation

[option]: represents the operation type

For example: g represents global replacement;

c means to confirm

p means that the substitution results are displayed line by line (Ctrl + L restores the screen);

When option is omitted, only the first matching string in each line is Replacement;

If special characters appear in the source string and destination string, they need to be escaped with "\"

The following are some examples:

#Replace That or Replace this with This or that

:%s/\(That\) or \(this\)/\u\2 or \l\1/

—-

#Replace child at the end of the sentence with children

:%s/child\([ ,.;!:?]\)/children\1/g

—-

#Replace mgi/r/abox with mgi/r/asquare

:g/mg\([ira]\)box/s//mg//my\1square/g :g/mg[ira]box/s/box/square/g

—-

#Replace multiple spaces into one space

:%s/ */ /g

—-

#Use spaces to replace one or more spaces after a period or colon

:%s/\([:.]\) * /\1 /g

—-

#Delete all blank lines

:g/^$/d

—-

# Delete all blank lines and blank lines

:g/^[ ][ ]*$/d

—-

#Insert two blanks at the beginning of each line

:%s/^/> /

—-

#Add at the end of the next 6 lines.

:.,5/$ /./

—-

#Reverse the line order of the file

:g/.*/m0O :g/^/m0O

—--

#Find the starting line that is not a number and move it to the end of the file

:g!/^[0-9]/m$ g/^[^0-9]/m$

—-

#Copy 10 words from lines 12 to 17 of the file and put them at the end of the current file

:1,10g/^/12,17t$

~~~~The role of the number of repetitions

——-

#Place the second line below the chapter start line The content is written in the begin file

:g/^chapter/.+2w>>begin

—-

:/^part2/,/^part3/ g/^chapter/.+2w>>begin

—-

:/^part2/,/^part3/g/^chapter/.+2w>>begin|+ t$

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