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Command mode
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ESC
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Movement command
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h, j, k, l
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left, down, up, right
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w, W, b, B
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forward, backward by word
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H
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top of the screen
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M
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middle of the screen
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L
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last line of the screen
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Ctrl-F
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forward one screen
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Ctrl-B
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backward one screen
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Ctrl-D
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forward half screen
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Ctrl-U
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backward half screen
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0 (zero), $
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start, end of current line
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Inserting text
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a
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append after cursor
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i
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insert before cursor
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A
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append to end of line
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I
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insert at start of line
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o
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open a line below current line
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O
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open a line above current line
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r
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replace char
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Delete text
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x
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current character
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dh
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previous character
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dw
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current word
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db
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previous word
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dd
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entire line
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d$
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to end of line
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d0 (zero)
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to start of line
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ndd
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next n lines
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Undelete
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p
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insert after cursor
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P
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insert before cursor
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Goto line
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:linenumber
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nG
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Goto line n
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:7
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Goto line 7
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Save and exit
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ZZ
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write if changes and quit
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:wq
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write and quit
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:w filename
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save to new file
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:q!
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quit vi
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Search
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/pattern <RETURN>
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forward for a pattern
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?pattern <RETURN>
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backward for a pattern
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n
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repeat previous search
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N
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repeat previous search in reverse direction
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Search and replace
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Example:
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- Search from current line and replace first occurance
:s/search_string/replace_string/
- Search from current line and replace all matches
:s/search_string/replace_string/g
- Search from every line, replace confirmation (with [y]es)
:%s/search_string/replace_string/gc
:1,$s/search_string/replace_string/gc
- Search lines from 10 to 20
:10,20s/search_string/replace_string/g
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Undo
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u
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the latest change
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U
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all changes on a line
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Concatenate
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J
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concatenate two lines
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