vi Commands

Question 1

What are the commands for switching between insert and command mode?

Answer 1

i for going into insert

esc for going back to command mode

Question 2

What does the following command do: x

Answer 2

Deletes the current character

Question 3

What does the following command do: dd

Answer 3

Deletes the current line

Question 4

What does the following command do: u

Answer 4

Undo the last change

Question 5

What does the following command do: /

Answer 5

Searches for the text to follow

Question 6

What does the following command do: :w

Answer 6

Writes to the file

Question 7

What does the following command do: :wq

Answer 7

Writes to the file and quits

Question 8

What does the following command do: :q

Answer 8

Quits if no change has been made

Question 9

What does the following command do: :q!

Answer 9

Exit without saving

Question 10

What does the following command do for cursor movement: h

Answer 10

One character left

Question 11

What does the following command do for cursor movement: j

Answer 11

Move one line down

Question 12

What does the following command do for cursor movement: k

Answer 12

Move one line up

Question 13

What does the following command do for cursor movement: l

Answer 13

move one character right

Question 14

What does the following command do for cursor movement: w

Answer 14

Move to the next word

Question 15

What does the following command do for cursor movement: e

Answer 15

Move to the end of the current word

Question 16

What does the following command do for cursor movement: b

Answer 16

Move to the beginning of the previous word

Question 17

What does the following command do for cursor movement: 0

Answer 17

Move to the beginning of the current line

Question 18

What does the following command do for cursor movement: $

Answer 18

Move to the end of the current line

Question 19

What does the following command do for screen movement: H

Answer 19

Move to the top of the screen

Question 20

What does the following command do for screen movement: L

Answer 20

Move to the bottom of the screen

Question 21

What does the following command do: ?

Answer 21

Searches backwards for something

Question 22

What does the following command do: o and O

Answer 22

Open a new line below or (above) the current line

Question 23

What does the following command do: i and I

Answer 23

Insert text before the current character or (at the beginning of the line)

Question 24

What does the following command do: a and (A)

Answer 24

Appends text at the end of the current character or (at the end of a line)

Question 25

What does the following command do: .

Answer 25

Redo the last modification command

Question 26

What does the following command do: yy or Y

Answer 26

Copy the current line

Question 27

What does the following command do: p

Answer 27

Paste

Question 28

What is the syntax for searching and replacing in vi?

Answer 28

:(%)s/wordToFind/replacementWord/(g)(c)

% = in all lines
g = find every occurrence
c = ask for confirmation first

Question 29

What happens when the % sign is removed in the following line?

:(%)s/wordToFind/replacementWord/(g)(c)

Answer 29

The search and replace only occurs in the CURRENT line, but still finds and replaces every occurrence in the current line