nvim-cmd.txt

============= modes
v - visual
i, I, o, O, - insert
R - replace
c - change mode
C - change from position till end of line
Esc - quit mode

============= navigation

b, B - back 1 word
w - 1 word forth
'z + Enter' - center screen

=============
'u' - undo
'Ctrl + r' - redo

====== 
'yy' - copy line
'y2w' - copy 2 words

'P' - paste before
'p' - paste

'x' - delete char
'X' - backspace
'dd' - delete line
'd$' - delete till end of line
'd2w' - delete 2 words

=== upper / lowercase

U - make UPPERCASE
u - make lowercase
~ - change case

g~{motion} - change whole motion (g~w - change word to uppercase)
  or
gUw - make word uppercase 
gUU / g~$ - make line uppercase

===================== registers
:reg - registers

"" - contains last operated on text

"[0-...] - register number

"_dd - delete to BLACK HOLE register

=== named registers [a-z]

"[a-z]{cmd}
"ayy - add 'yy' to 'a' register
"Ayy - append to 'a' register
"ap - paste from 'a' register

====== Find / Replace

f[a-z] - go to next [a-z]
Shift + f + [a-z] - back
; - keep searching / go next item
, - go to previous item

t + [a-z]             - go to char next to item

/ - find
n - next
N - back

:s - substiture
:s/from/to/[flags]
[range]s/from/to/[flags]

.                     - first line
$                     - last line
%                     - all lines

:s/from/to/           - find and replace
:1,5s/from/to/g       - find and replace for first 5 lines
:.,$s/from/to/g       - replace from 1st to last lines
:%s/from/to/g       - replace from 1st to last lines

patterns:
:s#/var/tmp#/usr/local#

======= :set
is / icsearch         - incremental search
hls / hlsearch        - highlight search

:set {cmd}?           - check if s enabled
:set nu / nonu        - numbering ON / OFF

============ text objects
{action}{inner-object}{motion}
i / a                 - inner / whole
diw                   - delete Inner word
daw                   - delete all word
das                   - delete all sentence
ci[ = ci]             - change inside brackets
at / it               - TAG object (e.g. HTML tag <p>)
ci{                   - change all inside { }

============= macros
Note: better use 0 after start recording to be at the beginning of the line
q[reg]                - start/stop recording (e.g. "qa")
@[reg]                - to replay the macro use @ followed by register (e.g. "@a")
@@                    - repeat last macro
:27,35normal @d       - apply macro with reg 'd' to lines 27-35

// write macro to .vimrc
let @e = '0:s/"/'^M...'
let @t = 'ITODO: ^[j'

========= visual

v         - char-wise mode
V         - line-wise mode
Ctrl + v  - block-wise mode

~       - switch case
c       - change
d       - delete
y       - yank
r       - replace
x       - delete
I       - insert
A       - append
J       - join
u       - make lowercase
U       - make Uppercase
>       - shift right (indent right)
<       - shift left (indent left)

gv              - previous visual selection
:'<,'>          - visual area selection
:'<,'>center    - center selected area (ce)

============ settings

:set nu
:set nu?
:set history=500

ctrl + g      - show file working on

:buffers / :files / :ls  - list buffers (files)
:buffer file1            - open file 1 by name
:b 2                     - open file 2 by id
:bn                      - next file
:bp(revious)             - previous file
:bf / :bl                - first/last file
Ctrl + ^                 - switch file
:wall / :qall!           - save/quit all buffers
:bd                      - delete buffer

===================== windows

Ctrl + w, s              - add window
Ctrl + w, q              - close window
:vs (ctrl + w, v)        - view split
Ctrl + w, [h,j,k,l]      - navigate through windows
Ctrl + w, + / -          - change size


====================== Plugins

:set packpath
:packadd {addon-name}