Vim usage Daquan

The VI Editor is the standard editor for all UNIX and Linux systems, and its power is not inferior to any of the latest text editors, here is simply a brief introduction to its usage and a small number of instructions. Because the VIM editor is the same for any version of UNIX and Linux systems, you can learn more about it in any other location that introduces VI. Vim is also the most basic text editor in Linux, and once you learn it, you will be in the world of Linux.

1, the basic concept of VIM

Basically, vim can be divided into three states, namely command mode, insert mode, and bottom line mode, the functions of each mode are distinguished as follows:

1) command-line mode

Controls the movement of the screen cursor, the deletion of characters, words, or lines, moving and copying a section and entering insert mode, or to last line mode.

2) Insert mode

Only in the Insert mode, you can do text input, press "esc" to return to the command line mode.

3) Bottom Line mode

Save or Exit VI, or you can set the editing environment, such as looking for a string, listing line numbers ... such as

However, in general, we use the VIM to simplify the two mode, that is, the bottom row mode (last lines) is also included in the command-line mode.

2, the basic operation of VIM

A) Enter VIM

After you enter vim and file name in the system prompt symbol, go to the VI Full screen editing screen:

Vim MyFile

However, it is important to note that after you enter VI, you are in command mode and you want to switch to insert mode to enter text. First Use VI people will want to use the next key to move the cursor, the result of the computer has been a beep, the gas to death, so enter the VI, do not move, switch to "insert mode" and then!

b) switch to insert mode to edit the file
Press the letter "i" under Command mode to enter "Insert Mode", and you can start typing the text again at this point.

c) Toggle of Insert

You are currently in "Insert Mode", you can only enter text, if you find the wrong word! To move back with the cursor key, delete the word, then click the "esc" key to go to "command mode" and then delete the text.

d) exit Vim and save the file

Under Command mode, click the ":" colon key to enter "last line mode", for example:

: w filename (enter "w filename" to save the article with the filename you specified)

: Wq (input "wq", save and Exit VI)

: q! (Enter q!, do not save the mandatory exit VI)

3. Command mode function key

1). Insert mode

Press "i" switch into insert mode "insert mode", press "I" into the insertion mode is the beginning of the cursor from the current position to enter the file;

After pressing "a" into insert mode, the text is entered from the next position at the current cursor position;

When you press "o" to enter insert mode, you insert a new line and enter text from the beginning of the beginning.

2). Switch from insert mode to command line mode

Press the "esc" key.

3). Move the cursor

Vim can be directly on the keyboard with the cursor to move up and down, but the normal vim is the lowercase English letter "h", "j", "k", "l", respectively, control the cursor left, bottom, upper, and right one grid.

　　 spacebar to right, Backspace left, Enter to next line,-move to top line。

Press "ctrl"+"b": The screen moves one page to the back.

Press "ctrl"+"f": The screen moves one page to the front.

Press "ctrl"+"u": The screen moves the half page toward the back.

Press "ctrl"+"d": The screen moves the half page toward the front.

"0" by number: Moves to the beginning of the article.

Press "g": Move to the end of the article.

Press "$": Moves to the end of the line where the cursor is located.

Press "^": Moves to the beginning of the line where the cursor is located

Press "w": Cursor jumps to the beginning of the next word

Press "e": Cursor jumps to the end of the next word

Press "b": Cursor back to the beginning of the last word

Press #l: The cursor moves to the first # position of the line, such as: 5l,56l.

4). Delete text

"x": Each time you press the cursor, delete the "after" character at the position where the pointer is located.

#x: For example, "6x" represents the "after" 6 characters of the location where the cursor was deleted.

"x": Uppercase X, each time it is pressed, deletes the "front" character at the location of the cursor.

"#X": for example, "20x" represents the "front" 20 characters of the location where the cursor was deleted.

"dd": Delete the line where the cursor is located.

"#dd": Deletes the # line starting at the line where the cursor is located

5). Copy

"yw": Copies the characters from the cursor to the end of the word into the buffer.

"#yw": Copy # words to Buffer

"yy": Copy cursor line to buffer.

"#yy": for example, "6yy" represents a copy of 6 lines of text from the line where the cursor is located.

"p": Paste the characters in the buffer to the cursor location. Note: All copy commands related to "Y" must be mated with "P" to complete the copy and paste function.

6). Replace

"r": Replaces the character at which the cursor is located.

"r": Replaces the character where the cursor is located until the "esc" key is pressed.

7). Reply to Last action

"u": If you mistakenly execute a command, you can press "u" immediately to go back to the previous action. Multiple replies can be performed by pressing "U" multiple times.
"u": Undo all operations on the current line
8). Change

"cw": Change the word-to-tail at the cursor location

"c#w": For example, "c3w" represents a change of 3 words

9). Jump to the specified line

"ctrl"+"g" lists the line number of the line where the cursor is located.

"#G": for example, "15g", which means moving the cursor to the beginning of the 15th line of the article.

4. Next line Mode command brief
Before using "last line mode", remember to press "esc" to make sure you are under "command mode" and then press ":" Colon to enter "last line mode".

A) List line numbers

":set nu": After you enter ":set nu", the line numbers are listed before each line in the file.

B) jump to a line in the file

The "#":"#" number represents a number, enter a number after the colon, and then press ENTER to jump to the line, such as entering the number 15, and then enter, you will jump to the 15th line of the article.

C) Find characters

"/Keyword: First press the"/"key, and then enter the character you want to look for, if the first keyword is not what you want, you can always press"n"will look back to the keyword you want,

You can always press "n" to look forward to the keyword you want.

"? keyword": Press "?" first Key, and then enter the character you want to find, if the first keyword is not what you want, you can always press "n" will look forward to the keyword you want to,

You can always press "n" to look forward to the keyword you want.

D) Save the file

"w": Enter the letter "w" the colon to save the file.

E) Leave Vim

"q": Press "q" is to exit, if you cannot leave VI, can be "q" followed by a "!" Forced to leave VI.

"qw": Generally recommended to leave, use with "w", so you can also save the file when exiting.

If you want to learn more about the use of Vim, please refer to http://easwy.com/blog/archives/advanced-vim-skills-catalog/

Vim usage Daquan