Linux Operating System Basics vi/vim command

Before introducing the Nano editor, Vi/vim is more powerful in functionality, so it is common to write scripts using the Vi/vim editor. Vim adds a more friendly editing interface to the VI and makes it easier to find errors.

It can also be called Modal Editor: Edit mode (Command mode), last line mode, insert mode (input mode), replacement mode, visual mode, and script editing with good combination of various modes.

First, the Vi/vim open way:

Vi/vim: Open the Vi/vim interface;

Vim File:file exists, then open and place the cursor by default on the first line of the character;

File does not exist, it is opened as a new file, if saved, the files are created, if not saved, the file disappears;

Vim +# File: Set the cursor at the beginning of line #;

Vim + file: The cursor is positioned at the beginning of the last line;

vim+/pattern/Open the file, and position the cursor to the beginning of the line where the first PATTERN match is done, i.e. only the first match is completed;

Ii. how vim is closed:

Closing of the last line mode:

: Q Directly close the Vim editor, do not save the content of the changes;

: q! mandatory exit but not save;

: W Save the modified content;

: Wq Save the modified content and close the Vim editor;

: wq! for root users, some of the read-only file changes can be forced to save and exit;

: w! compulsory preservation;

Editing mode is off:

ZZ Exit save;

ZQ exit does not save;

In Vim's edit mode, move the cursor:

Character-by-word movement;

arrow, up or down key;

command Hjkl, on some keyboards do not configure the upper and lower left and right keys to use, the front can be added number, #h向左移动 # characters;

moving verbatim;

W moves to the next word;

e moves to the end of the word;

B Go back to the top of the word;

In-line jump;

0 Absolute beginning of the line;

^ relative beginning of line;

$ end of line;

Inter-row jump;

#G直接将光标移动至第 # line;

g Move the cursor directly to the last line;

GG Moves the cursor directly to the first line;

Cursor movement in last-line mode:

: #将光标移动至第 # line;

: $ to move the cursor directly to the last line of the document;

Third, page:

ctrl+f down a screen forward;

ctrl+b up one screen back;

ctrl+d down half screen;

ctrl+u up half screen up;

Four, character-by-word deletion:

x Delete the character at the cursor location;

x Delete the single character to the left of the cursor position;

V. The universal Delete command in edit mode:

D: Delete all the contents of the cursor;

DD: Delete the line where the cursor is located;

In the last line mode:

: m,nd Delete the contents of M to n rows;

. Represents the row where the current cursor is located;

$ indicates a trailing line;

M,+nd starts at the line where the cursor is currently located, passing n rows;

Six, paste:

P: paste right down;

P: Paste to the left upward;

in the last line mode:

p;

Seven, the Universal Copy command in edit mode:

Copy all the contents of the cursor;

The usage is the same as the D command;

Eight, the mode of switching:

1. From edit mode to last line mode:

: Enter command;

and To find, N and n,n to indicate sequential lookups, n for reverse lookup;

Top-down

？ Bottom-up

2. From the last line to the edit mode:

ESC key;

Enter key;

Backspace key;

3. From edit mode to input mode:

I move the cursor to the beginning of the line and enter the input mode;

I insert the information in front of the position without changing the position of the cursor;

A move the cursor to the end of the line and enter the input mode;

A inserts a character after the cursor position;

o Insert a row above the line where the cursor is located;

o Insert a row below the line where the cursor is located;

C Replace the whole line of content;

C Delete from the cursor position to the end of the line, and enter the input mode;

s remove a character from the cursor position and enter the input mode;

s replace the whole line of content;

4. From input mode to edit mode:

ESC key;

5. From edit mode to replacement mode:

R enters the replacement mode;

6. From replacement mode to edit mode:

ESC key;

7. From edit mode to Visual mode:

v character selection;

V Select entire row;

A copy or delete operation can be performed after the selection;

Just complete the operation and go back to edit mode;

Note: All mode switching must be through the edit mode, the two non-editing modes can not directly switch between;

Nine, replace the command:

R replaces only one character;

X. Revocation:

u: Undo a previous edit operation;

ctrl+r: Undo the most recent undo operation;

Xi. Repeat the previous edit operation:

.;

12, the special last line command:

1.:set number Displays line numbers->set nu;

: Set Nonumber Cancel line number->set Nonu;

2. Turn character case sensitivity on or off:

: Set ignorecase, set IC;

: Set noignorecase-> set noic;

3. Turn the Auto Indent feature on or off:

: Set Autoindent->set ai;

: Set Noautoindent->set noai;

4. Turn on or off the find highlighting:

: Set nohlsearch->nohl;

: Set Hlsearch;

5. Turn syntax coloring on and off:

: Syntax on;

: Syntax off;

13, Vimtutor:

called a vim instructor, we can practice various actions in vim by opening vimtutor.

Vi/vim editing commands in the small operation more, more practice, slowly skilled up good.

Linux Operating System Basics vi/vim command