Use of vim

I think good programmer is learning various knowledge and
having various programming skills.

But, I think used to programming toos is important recently.

Vim is good editor for programmer.

Simple use of vim

vim filename : open filename

view filename : open filename read only (I think it is useless)

:q! : quit no save

:wq : save and quit

i : insert character before cursor

I : insert character before line

o : insert character under line

O : insert character upper line

a : insert character after cursor

A : insert character after line

w : right direction next word last character

e : right direction next word first character

b : previous word last character

dd : line delete

1,10d : 1 ~ 10 lines delete

yy : paste

h : left

j : down

k : up

l : right

^ : first of line

$ : last of line

For beginner, this is sufficient