Shulou(Shulou.com)06/02 Report--

Vi,Unix&Linux under the most basic editor, powerful and easy to use, is a necessary tool for users.

Mode:

Command mode (default, the contents of the file are edited through commands)

Vi / / create an empty file in the current directory

Vi filename / / Open the specified file

Vi-o | O F1 f2 / / Open multiple files, o | O indicates horizontal | Vertical separation

Automatically enter the command mode after opening the file through vi, where all inputs are commands

Insert mode (used like a normal editor in windows)

Press any key of iaoIAO in command mode to enter insert mode, and esc returns to command mode

I insert text before the cursor

I insert before the line where the cursor is located

An insert text after the cursor

An is not inserted in the line where the cursor is located

O insert a new line under the line of the cursor

O insert a new line on the line where the cursor is located

Edit mode (edit the file or the contents of the file by command)

Press ":" in command mode to enter edit mode, and esc or enter to return to command mode after performing the operation

View mode (belongs to command mode)

VV enters view mode and executes character selection

Example: press "H" or "L" to move the cursor to select characters, copy and cut through yd

Common command

[positioning command]

Hjkl: cursor [left, bottom, top, right] move, same direction key

0: move to the beginning of the line

^: non-blank wardrobe

$: move to the end of the line

Enter: move to the beginning of the downlink

H: move to the top of the screen

M: move to the center of the screen

L: move to the bottom of the screen

Cmurf: next page (Cmurf stands for Ctrl+Shift+F)

Cmurb: previous page

Gg: move to the first line

G: move to the end of the file

[n] G: move to line n of the file

: n move to line n of the file

[delete command]

X: delete characters at the cursor

Nx: n characters after cursor location

X: delete the character before the cursor

Dd: cut the line of the cursor

Ndd: cut the following n lines from the current line

DG: delete the line of the cursor to the end of the file

D: delete the cursor to the end of the line

: N1 penal n2d deletes the content between N1 lines and N2 lines

[copy & paste]

Yy/Y: copying the current line

Nyy,nY: copy the n lines below the current line

Nyh,nyl: copy n characters before / after the cursor

Pforce P: paste lines that have been copied or deleted to the current line or onto the current line

[search & replace]

R: replace the character where the cursor is located

R: replace characters from the cursor to the end by pressing esc

S: replace (delete) the character at the cursor and enter the text input mode

S: replace (delete) the line of the cursor and press esc to end

: / string / / search for strings from top to bottom

:? string / / search the string up from the bottom

Move to the next result by pressing n: ncompass / hour down,? Search for Nmax / h up,? Search downwards in time

:% s/old/new/g / / replacing all old with new,g will not ask, c will ask if no replacement

:% s/old//g / / delete all old

N1mag / / replace the specified string within a certain range

Example: continuous line comments

: N1 ~ ~ n2s / ^ / # / g / / ^ indicates the beginning of the line

: n1Jing n2s / ^ / # / g / / replace the beginning of the line'# 'with an empty one, that is, delete

: N1 Jing n2s / ^ / g / / escape character, use "/ /" to comment

Replace: enter or space when ab asmmail samlee@lampbrother.net// enters a, and vi will automatically change to b

Unab// cancel

[undo]

U: undo the previous action (up to when the file is open).

U: undo all actions on the current row.

Ctrl+r: undo

[save exit]

W save

W newfilename save as

: w! Force save /! For file owners and administrators only

Wq save & exit / / shortcut key ZZ

Q exit

: q! Forced exit

: wq! Force save & exit

: X save exit

: x! Force save & exit

[other]

: set nu/number / / set line number

: set nonu / / cancel the line number

: set ic / / case-sensitive

: set noic / / cancels case sensitivity

: vsp / / Vertical window

: sp / / horizontal window

CmurW penclosed / / switch to the previous / next window

R filename imports the contents of the specified file (cursor location).

:! Cmd runs the cmd command

R! date imports command results into a file

Map shortcut key trigger command

Map ^ P I # / / comment this line using ctrl+p (enter "^ [P]" using ctrl+v+ [p])

Map ^ B 0x / / Uncomment

Unmap

Vi configuration:

Set the vi default environment through the vi configuration file.

Example: set vi to display line number by default

Cd ~ / / return to the current account home directory

Vi .vimrc / / vi configuration file, which does not exist by default, in the home directory, for the current user

ICompact / enter edit mode

Set nu

Map ^ P I#

……

: wq

I realized the above on the linux based on sail-imx6q (Electric Fish Electronics) development board, and my friends can also check it out on this development board.

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