Use of Vim

Basic concept: A powerful text editor developed by VI
Open File:
Vim file name
Vim + N File name —————— How many lines of file are opened directly
Vim three modes of operation
Command mode
Command mode toggle Input mode
Input mode
Last-line mode
Switching between three modes

Multi-Window function
Open multiple windows: sp+ file (sp opens the current file again by default)
Multi-Window switching: ctrl+w+j/k or Ctrl+w (by multiple)
Execute the command without turning off vim
：！ Command
: shell-switch Shell command line, EXIT returns VIM
Multi-file editing
Open multiple Files: Vim file1 file2 File3
Show all open files--:files
Edit Next file: N
Edit Previous file: N
Block selection
In normal mode (press ESC to enter) The key v into the visualization mode, and then press the left or right keyboard or h,l key to achieve the text selection.
V: Select by character. Patterns that are used frequently
V: Select by row
CTRL + V: SELECT by block. Very powerful, only in a few editors have such a function. You can select a rectangular block, and the text inside the rectangle will be highlighted.

Basic operation of the last line mode
Save and exit
Save
: w--Save Changes
: W file path-Save as other file
Exit
: q--does not save exit
: q! --Force Save exit
Save and exit
: wq--Save Exit
: x--Save Exit
: wq! --Force Save exit
: e! Discard all changes and open the original file.
Paste other file contents in the current file
: r+ File path
Open new File Edit
: e+ File path
File content Substitution
: s/old/new--replaces the first character found in the current row
: s/old/new/g--replaces all characters found in the current line
: #, #s/old/new/g--Replace all strings in the line number "#,#" range
:%s/old/new/g--replaces all strings within the entire file
: s/old/new/c need to be manually confirmed by the user before ——— replacement
Delete the contents of the first line to the first line: N,nd
Copy the contents of the first line to the first line: N,ny

Basic operation of Command mode
Cursor movement
Move Cursor Direction
Left and right
Flip Screen operation
ctrl+f--back one page
ctrl+b--a page forward
ctrl+d--back Half page
ctrl+u--Half-page forward
Enter-turn backwards by line
In-line jump
Jump between characters
h--Left
j--under
k--on
l--Right
Note: You can add numbers before the letters to indicate a few characters to jump
Jump between words
w--jump to the beginning of the next word
e--jumps the ending of the current or last word
b--jump to the beginning of the current or the next word
Note: You can add numbers and jump to several words
Beginning line End Jump
0--jump to the beginning of the line
^--jump to first non-whitespace character at the beginning of a line
$--jump to end of line
Inline jump
g--jump to the last line
1g,gg--jump to the first line
NG: Jumps to the specified n-line
N "Enter"--Move the cursor down n rows

复制    yy——复制光标所在行的所有字符    nyy——复制光标开始往后n行    y$——复制光标开始到行尾字符    y^——复制光标开始到行首字符    y0——等同y^粘贴    p———粘贴在光标所在行的下方    P——粘贴在光标所在行的上方删除    字符        x——删除光标后面一个字符        X——删除光标前面一个字符        nx——删除光标后面连续n个字符    行内多个字符        d0——删除光标开始到行首的字符        d$——删除光标开始到行尾的字符        d^=d0    整行        dd——删除光标所在行        ndd——删除光标所在行及向下n行查找    /word——从上往下查找    ?word——从下往上查找    n——定位上一个查找结果    N——定位上一个查找结果撤销编辑与反撤销与重复执行上一个操作    撤下：u    反撤销：ctrl  +  R    “.”——重复执行上一个操作

DD is equivalent to clipping and can be pasted directly

Attention:
If you use Vim to edit a file during a process that is not normally closed, it will save your written, but unsaved, content to this cache file (ls-a view, the hidden file that begins with.), called the swap file.
Suggestions can be deleted directly and will not appear the next time you open the file.

Use of Vim