"Vim" Search and replace

1. Search

Command	Function	Note
*	Search down the word where the cursor is located	n Next, N prev
#	Search up the word where the cursor is located	Ditto
[+<ctrl>+i	Jump to the declaration of the variable where the cursor is located	Use tag
[+<ctrl>+d	Jump to the definition of the macro where the cursor is located	Use tag
YCM Positioning commands	Jump to the declaration or definition of the variable where the cursor is located	Youcompleteme plug-in functionality, you can use the following 3 commands, However, the shortcut key is usually used: : Ycmcompleter gotodeclaration : Ycmcompleter gotodefinition : Ycmcompleter gotodefinitionelsedeclaration
/<pattern>	Search down mode <pattern>	<pattern> is not just a simple string, it can also be a complex regular expression
?<pattern>	Search up Mode <pattern>	Ditto
: Vimgrep <pattern> <files>	Search Patterns in Files <pattern>	For example, search for ABC in all. cpp files in the current directory: : Vimgrep ABC *.cpp If you want to search subdirectories, this is : Vimgrep ABC **/*.cpp The results come out in the Quickfix window, with the command: CW Exhale

2. Replace

Command	Function	Note
<scope>s/<pattern>/<str>[/<option>]	All strings that match the pattern in the range specified by scope Replace with Str,option as an optional parameter	With option, the front is added/ Example :%S/ABC/XYZ/GC Replace all ABC in the current file with XYZ and confirm before replacing Option g: replace each line with all ABC, if not add only the first one Option C: Ask the user for confirmation before replacing, the user can select Y to confirm, N denies and jumps to the next match, Q Stop, a don't ask for all yes
: Args <files> : Argdo <scope>s/<pattern>/<str>[/<option>]	Match pattern within scope specified in file <files> Replace all strings with str,option as optional parameters	The parameters are described above. Example : args *.txt *.cpp : Argdo%S/HATE/LOVE/GC | Update Replace the hate in all TXT and CPP files in the current directory with Love, Before each replacement, the update command occurs when the file is changed Save. Note: The replacement operation in the file is not recoverable, please do it carefully and make a backup

VIM many operations have range parameters, and the Replace command is no exception. The% in the above command represents all rows, plus m, n means from line m to nth row.

3. Tip 3.1 Copy a piece of text from the body to the command line

First copy, to the command line, <ctrl>+r+ "(" is <shift>+ ').

Also, please remind me:
<ctrl>+p is the automatic input of the last command, <ctrl>+n is automatically entered the next command,
<ctrl>+b is jumping to the beginning of the command line, <ctrl>+e is jumping to the end of the command

3.2 Replace \ n line break

Scene:

Using VIM to edit a text file, you want to add a character, such as ";", before each line wraps.

Think of the replacement command:

:%s/\n/;\n/g

The result is always wrong.

Later found a solution:

:%s/\n/;\r/g

It was concluded that:

When searching: \ n is newline, \ r is CR (carriage return = Ctrl-m = ^m)
When replacing: \ r is newline, \ n is a null byte (0x00).

It means:

String lookup, "\ n" is a newline, "\ R" is a carriage return, which is often seen ^m (note-1).

When a string is replaced, "\ r" is a newline, and ' \ n ' is a null character (0x00).

For more details, refer to Http://vim.wikia.com/wiki/Search_and_replace

3.3 Clear All ^m some files that are edited on Windows are copied to Linux on the end of the ^m, and sometimes you want to replace them with the following commands
:%s/<ctrl>+v <ctrl>+m//g

Is the control key +v, and then the control key + M, it becomes the ^m, and then replaced by empty on it.

"Vim" Search and replace