Vim Editor Detailed

Character test:

= = Test whether equal, want to wait for true, not equal to False

！ =: Test whether unequal, not equal to true, and so false

Loop: Enter condition, exit condition

For

While

Until

for variable in list;

Loop body

Done

For I in 1 2 3 4 5;do

Addition operation

Done

After the traversal is completed, exit;

How to generate a list:

{1..100}

' SEQ [start number [step length]] End number '

Vim Editor

Full screen editor, modal editor

Vim mode:

Edit mode (Command mode)

Input mode

Last-line mode

Mode conversion:

Edit--Input:

I: In front of the character of the current cursor, switch to input mode;

A: After the character of the current cursor, switch to input mode;

O: At the bottom of the current cursor line, create a new row and switch to input mode;

First, open the file

# Vim/path/to/somefile

Vim +#: Open the file and locate it on line #

Vim +: Open the file and navigate to the last line

Vim +/pattern: Open the file and navigate to the beginning of the line that was first matched to the PATTERN

Second, close the file

1, the last line mode closed file

: Q exit

: Wq Save and exit

: q! Do not save and exit

: W Save

: w! Forcibly saved

: Wq---: X

2. Exit in edit mode

ZZ: Save and exit

Four Turn screen

CTRL+F: Flip one screen down

Ctrl+b: Turn up one screen

Ctrl+d: Flip Down half screen

Ctrl+u: Flip up half screen

Five delete a single character

X: Delete a single character at the cursor location

#x: Remove the total # characters from the cursor and backwards

Six Delete command: D

DD: Deletes the current cursor in the row

#dd: Delete the # line including the line where the current cursor is located

Seven, Paste command p

Eight, copy command y

Usage with D

Xi. Undo the previous edit Operation U

12. Repeat the previous edit operation

14. Find

/pattern looking at the tail

?/pattern to the header

XV, find and replace

Use the S command in the last-line mode

Addr1,[email Protected]@[email protected]

G: Indicates global I: Ignores case

%: Full text

Exercise: Replace Ftp://test.test.com/pub in the/mnt/test file with http://t-rex.cn

:%[email protected]ftp://test\.test\.com/[email protected]://[email protected]

16. Use Vim to edit multiple files

Vim FILE1 FILE2 FILE3

: Next switches to the next file

:p Rev Switch to the previous file

: Last switch to final file

: first to switch to file one

Exit

: QA All exits

17, split screen display a file

Ctrl+w, S: Horizontal splitter window

Ctrl+w, V: Vertical splitter window

Toggle the cursor between windows:

Ctrl+w,arrow

: QA Closes all windows

18. Edit multiple files in a window

Vim-o: Horizontal Split display

Vim-o: Vertical Split display

19. Save some of the contents of the current file as a different file

Use the W command in the last row mode

: W

: Addr1,addr2w/path/to/somewhere

20. Populate the contents of another file in the current file

: R/path/to/somefile

21. Interacting with the shell

:! COMMAND

22. Advanced

1. Display or suppress line numbers

: Set Number

: Set Nu (abbreviated)

: Set Nonu cancel notation

2. Display ignores or distinguishes character case

: Set ignorecase

: Set IC

3. Set Auto Indent

: Set Autoindent

: Set AI

: Set Noai

4. Check the found text highlighting or canceling

: Set Hlsearch

: Set Nohlsearch

5. Syntax highlighting

: Syntax on

: Syntax off

23. Configuration Files

/ETC/VIMRC (global scope is effective for all users)

~/.VIMRC hidden files in the personal directory

Practice:

1, add 10 users user1 to User10, password with the user name: but requires only the user does not exist in the case

To add

#!/bin/bash

#

For I in {1..10}; Do

If ID user$i $>/dev/null; Then

echo "User already exists"

Else

Useradd user$i

echo user$i | Password--stdin user$i &>/dev/null

echo "User$i User Add Complete"

Fi

Done

Vim Editor Detailed