vi commands

vi_commands

Commands
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:q        exit if there are no changes
:q!       exit without save
:wq,:x    save and exit
:w        save

u     Undo last change
U     undo all changes to the line

Selection
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v     visule mode to select using arrow keys
y     copy selected pard
p     paste copied selection

Cursor Navigation
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0   Move to start of line
$   Move to end of line
:0  move to first line of file
:$  move to last line of file
w   move to next word
b   move to previous word
:n  go to nth line

Search
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:/string_to_search
n   go to next match


Replace
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:s/pattern/newstring/flags  replace in current line indecated by cursor
g     replace all
c     confirm before replacing
&     repeat last :s command
:%s/pattern/newstring/flags replace in whole file