Vim

Question 1

What are the different ways to get into insert mode?

Answer 1

i = insert text before the cursor
I = insert at start of line before first non-blank
a = append text after cursor
A = append text at end of the line
o = begin a new line below the cursor and insert txt
O = same but above

Question 2

What are different ways to delete characters or lines?

Answer 2

dd = delete a line
D = delete rest of line
x = delete a character
r = replace a character

Question 3

What are different ways to search for characters/segments?

Answer 3

/ = search forward
? = search backward
*n = look at next result
N = previous result

Question 4

How can you copy?

Answer 4

yy or Y = copy
p = paste before cursor
P = paste before cursor
*whole line

Question 5

what are the following commands?
:w, :q, :wq, :q!, :number, :e

Answer 5

:w = save file
:q = quite current window
:wq = save and quit
:q! = quit and discard changes
:number = go to specific line number
:e filename = edit a file