Linux VIM Basic Use (i) __linux

Vim is a powerful text editor, by default there are three modes: Command mode, insert mode, edit mode, use # Vim file to open a file, the default into the command mode, different modes of direct switching as follows
A. Command mode switch to insert mode: ESC key returns command mode

I: Start inserting at the cursor

I: Inserts at the beginning of the cursor

A: Start inserting at the end of the line (append)

o: Insert a new line under the cursor

B. Command mode toggle edit mode: Direct input: Can, enter the command mode return

Common commands:

1.1 positioning command (in command mode)

1.1.1 Cursor moves to the beginning of the line: 0

1.1.2 Cursor move to end of line: $

The 1.1.3 cursor moves to the first character of the file first: GG

The 1.1.4 cursor moves to the end of the file, the first character: G

1.2 copy && cut (delete) && paste (in command mode)

1.2.1 Copy line: yy

1.2.2 Copy n rows: Nyy

1.2.3 Cut one line: DD

1.2.4 Cut n rows: ndd

1.2.5 cut to end of line: D

1.2.6 cut to end of file: DG

1.2.7 cut the specified line:: n1,n2d edit mode N1: Start line number, N2 stop line number, note that this command is in command mode, and note that D, do not forget to write

1.2.8 paste under cursor: P

Note: Delete and cut commands are the same in vim, as long as they are not pasted, cut is deleted

1.3 Replacement && Search (Command mode)

1.3.1 replaces a single character at the cursor: R, and then enter the character you want to replace

1.3.2 into replacement mode: R, can be replaced continuously, ESC exits to command mode

1.3.4 Bulk Replacement: Replace the OLDSTR string with Newstr, edit mode

1.:%s/oldstr/newstr/c full text replacement, there are inquiries prompted

2.:%s/oldstr/newstr/g full text replacement, no inquiry tips

3.: n1,n2s/oldstr/newstr/c N1 line to N2 between the line to replace, there are inquiries prompted

4.: n1,n2s/oldstr/newstr/g N1 line to N2 line replacement, no query prompts

1.3.5 Search: Enter vim Shime do not ignore case-insensitive search

1. General Search:/str

2. Fuzzy search: First set the file to ignore case, in edit mode input: Set IC

Settings file does not ignore case: set Noic

After you find it, press N to find the next

1.4 Save Exit: (in edit mode)

1.4.1 Save: W

1.4.2 Save as: w NewFileName

1.4.3 Save and exit: Wq

1.4.4 do not save exit: Q.

1.4.5 forced Save: Wq. Refers to a read-only file, but only the owner of the file and the root user can use this command

1.4.6 undo Operation: U Command mode (undo)