Vi usage and Common commands, vi Use common commands

Vi usage and Common commands, vi Use common commands

Keywords: vi usage and Common commands

1. Use of the vi Editor

Some functions of the editing appliance:
1) open a file, create a file, and save the file
2) move the cursor
3) text editing
4) Copy, paste, and delete multiple rows/columns
5) search and replace

2. vi editor configuration method

Input in sequence on the terminal
1)Cd/etc/vim: Switch path
2)Cp vimrc ~ /. Vimrc: Copy vimrc to the Home Directory
3)Cd ~ : Switch to the Home Directory
4)Gedit. vimrc: Open vimrc
5) copy the following code to vimrc.

"Disable compatibility function set nocompatible" display row number set number "when editing, the backspace key is set to 2 spaces set backspace = 2" when editing, the tab key is set to 4 spaces set tabstop = 4" set automatic alignment to 4 spaces set shiftwidth = 4 "Case Insensitive set ignorecase" when searching highlighted set hlsearch

6) Save and close

3. Three Modes of vi Editor Normal Mode: move the cursor, copy, paste, and delete the edit mode: edit the text command line mode: search and replace

Note: If you do not know the mode, Press ESC to returnNormal Mode

4. Use of vi

In normal mode:
: W: Save the file
: Q: exit the file.
: Wq: Save and exit the file
: Q! : Force exit vi. This file is not saved even if it is modified.

In edit mode:
I: start inserting text before the cursor
A: insert text after the cursor
O: open a new row under the current row and start it at the beginning of the row.

Move the cursor:
In normal mode:
H (left)
J (lower)
K (upper)
L (right)

Quickly locate a row:
Ngg: move the cursor to the beginning of line n (n is a number ). For example1gg indicates that the line is first to the first line, that is, the file header.
G: Go to the end of the file

How to quickly locate a column in a row (Single Row/Column Switching ):
0 (number zero): move the cursor to the beginning of the current row
$: Move the cursor to the end of the current row
Fx: Search for the next place in the current row with the letter x

Copy and paste text
Yy: copy the current row
Nyy: copy the current row and Its n-1 rows
P: Paste

Delete
Dd: Delete the row where the cursor is located.
Ndd: Delete the current row and Its n-1 rows
X: Delete the character at which the cursor is located

Undo
U: undo

Search
/Pattern: Starting from the cursorEnd of FileSearchPattern (skip to the first line before/pattern to search for the entire file), and then press n or N
? Pattern: Starting from the cursorFile HeaderSearchPattern, and then press n or N

Note:
N repeat the previous search command in the Same Direction
N repeat the previous search command in the opposite direction

Replace
: % S/p1/p2/g: replace all p1 in the file with p2,
: % S/p1/p2/gc: confirm the replacement

S: replace substitute
G: global
C: confirm confirmation