How to modify and save files by using the vi command in linux

How to modify and save files by using the vi command in linux

 

Access the vi command

Vi filename: open or create a file and place the cursor at the beginning of the first line
Vi n filename: open the file and place the cursor at the beginning of line n
Vi filename: open the file and place the cursor at the beginning of a line
Vi/pattern filename: open the file and place the cursor at the first string matching pattern
Vi-r filename: a system crash occurred when vi was being edited last time, restoring filename
Vi filename... filename: open multiple files and edit them one by one.


Move cursor command

H: Move the cursor one character to the left
L: Move the cursor one character to the right
Space: Move the cursor one character to the right
Backspace: Move the cursor one character to the left
K or Ctrl p: Move the cursor up a row
J or Ctrl n: Move the cursor down a row
Enter: move the cursor down a row
W or W: move one word to the beginning of the word to the right of the cursor.
B or B: move one word left to the beginning of the word
E or E: move one word to the end of the word to the right of the cursor.
): Move the cursor to the end of the sentence.
(: Move the cursor to the beginning of the sentence.
}: Move the cursor to the beginning of the paragraph
{: Move the cursor to the end of the paragraph
NG: Move the cursor to the beginning of line n
N: Move the cursor down n rows
N-: Move n rows above the cursor
N $: Move the cursor to the end of line n
H: Move the cursor to the top line of the screen
M: Move the cursor to the middle line of the screen
L: Move the cursor to the screen line
0: (note the number is zero) move the cursor to the beginning of the current row
$: Move the cursor to the end of the current row



Screen tumble command

Ctrl u: half screen at the beginning of the file
Ctrl d: Flip the half screen to the end of the file
Ctrl f: flip the screen to the end of the file
Ctrl + B; open a screen at the beginning of the file
Nz: Rolls row n to the top of the screen. if n is not specified, the current row is rolled to the top of the screen.



Insert text commands

I: before the cursor
I: At the beginning of the current row
A: After the cursor
A: At the end of the current row
O: open a new row under the current row
O: open a new row above the current row.
R: replace the current character
R: replace the current and subsequent characters until you press ESC.
S: starting from the current cursor position, replace the specified number of characters with the input text



SAVE command

Press ESC to jump to the command mode, and then:

: W save the file but do not exit vi
: W file saves the changes to the file and does not exit vi.
: W! Force save, do not launch vi
: Wq: Save the file and exit vi.
: Wq! Force save the file and exit vi
Q: Exit vi without saving the file.
: Q! Do not save the file, force exit vi
: E! Discard all modifications and start editing the last saved file.

And press Enter. OK!

Access the vi command

Vi filename: open or create a file and place the cursor at the beginning of the first line
Vi n filename: open the file and place the cursor at the beginning of line n
Vi filename: open the file and place the cursor at the beginning of a line
Vi/pattern filename: open the file and place the cursor at the first string matching pattern
Vi-r filename: a system crash occurred when vi was being edited last time, restoring filename
Vi filename... filename: open multiple files and edit them one by one.


Move cursor command

H: Move the cursor one character to the left
L: Move the cursor one character to the right
Space: Move the cursor one character to the right
Backspace: Move the cursor one character to the left
K or Ctrl p: Move the cursor up a row
J or Ctrl n: Move the cursor down a row
Enter: move the cursor down a row
W or W: move one word to the beginning of the word to the right of the cursor.
B or B: move one word left to the beginning of the word
E or E: move one word to the end of the word to the right of the cursor.
): Move the cursor to the end of the sentence.
(: Move the cursor to the beginning of the sentence.
}: Move the cursor to the beginning of the paragraph
{: Move the cursor to the end of the paragraph
NG: Move the cursor to the beginning of line n
N: Move the cursor down n rows
N-: Move n rows above the cursor
N $: Move the cursor to the end of line n
H: Move the cursor to the top line of the screen
M: Move the cursor to the middle line of the screen
L: Move the cursor to the screen line
0: (note the number is zero) move the cursor to the beginning of the current row
$: Move the cursor to the end of the current row



Screen tumble command

Ctrl u: half screen at the beginning of the file
Ctrl d: Flip the half screen to the end of the file
Ctrl f: flip the screen to the end of the file
Ctrl + B; open a screen at the beginning of the file
Nz: Rolls row n to the top of the screen. if n is not specified, the current row is rolled to the top of the screen.



Insert text commands

I: before the cursor
I: At the beginning of the current row
A: After the cursor
A: At the end of the current row
O: open a new row under the current row
O: open a new row above the current row.
R: replace the current character
R: replace the current and subsequent characters until you press ESC.
S: starting from the current cursor position, replace the specified number of characters with the input text



SAVE command

Press ESC to jump to the command mode, and then:

: W save the file but do not exit vi
: W file saves the changes to the file and does not exit vi.
: W! Force save, do not launch vi
: Wq: Save the file and exit vi.
: Wq! Force save the file and exit vi
Q: Exit vi without saving the file.
: Q! Do not save the file, force exit vi
: E! Discard all modifications and start editing the last saved file.

And press Enter. OK!