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normal mode [Esc]
insert mode [i]
replace mode

Selection mode - visual - visual line - visual block

command line model

Notations for control + V

^VCtrl-V<C-V>

the interface itself is a programming language

1. How to insert a string at the beginning of a line

ctrl-v
drop down with "down arrow" up to the desired line
shift + i
type what ever you want to insert in the first line
type scape
then go down with the down arrow, it automatically will appear what you want

2. How to cut and paste (ctrl-v or ctrl-V)

take place where your want to start to copy or cut
Type ctrl-v if you want to select a character or type cltr-V if you want to select a full line.
if you type ctrl-v move the cursor where you want to cut/copy. Or move down if you want to copy/cut several lines.
if you want to cut, type Esc then d (delete), if you want to copy, Press Esc then y (yank)
then you move where you want to paste, then press Esq then type p (paste)

3. How to find a string

Press Esc
type: /
type what you want to find.
Once you find it, press n, to the next ocurrence.

4. how to replace with an / across the string to replace

Press Esc
Type :%s/stringTolookFor/stringToReplace/

if the string contains an character like /, then type / to scape it.

example:

before: ()
after: (https://github.com/c4arl0s/NavigationAndWorkflows#navigationandworkflows)
type

:%s/()/(https:\/\/github.com\/c4arl0s\/NavigationAndWorkflows#navigationandworkflows)/

Then type enter.

5. Repeats the last action

Press ESC
press .

6. Insert a # character at the beginning of the line

Press Esc
:1,40s/^/# /

7. Find an precise string an replace with something

Press ESC
:
Type

:%s/\<direccionMemoria\>/memoryDirection/

8. Insert a character or string at the end of a selected line

Select the line or lines. Type ESC, then ctrl-V.
then type: s/$/anyString/

it will looks like this:

:'<,'>s/$/anyString/

9. Insert a consecutive number at the beginning of a selected line

let i=1 | '<,'>g/^/ s//\=printf("%d ",i) / | let i+=1

10. Delete all lines that contains a specific pattern

Press Esc
type:

:g/.com/d

g - find it globally .com - pattern .com d - delete

another example: Delete all lines that start with // and it is the end of the line

press Esc
type:

:%g/^\/\/$/d

// hola
//// como estas
//

output:

// hola
// como estas

11. Make lowercase

Select word, line or several words, then:

:gu

12. Make upercase

Select word, line or several words, then:

:gU

13. Find any String inside parenthesis Ex. (http://...) with empty content ()

:%s/(.*)/()/

14. Find a particular character in a line using f

In normal mode

type:

fa - finds the first a ahead of the cursor Fa - fins the first a before of the cursor.

15. Delete only a character

type in normal mode:

x

16. Change inside brackets

in normal mode:

ci[

17. Quickly change a word or line

cw change word caw ciw cc change an entire line cis change inside sentence

18. Jump to the place of last Edit

g;

19. Yank the current line, including the newline character at the end of the new line, yy or Y

yyY

20. Jump to the place before of the last Edit

Type again g; so many times required to find the last Edit

g;

21. Yank the current word (no spaces)

yiw

this command exclude white spaces around the word.

22. Yank the current word (with sorounding spaces)

yaw

This command include whithe spaces sorounding

23. Yank all contained inside parenthesis ()

yi)

24. Yank all contained inside brackets []

yi]

25. Replace the character under the cursor

r{character}

26. Enter insert mode, replacing characters rather than inserting

then start typing

27. redo

Type Esc, then

tyoe Esc, then

ctrl-r

Type . to repeat the last command

28. insert mode

i - insert before the cursor
I - insert at the beginning of the line
a - insert after the cursor (aopend)
A - insert at the end of the line (append)
o - insert a new line below the current line
O - insert a new line above the current line
ea - insert at the end of the word -

29. remove ... from this line: 1.1 Should Software Engineers Worry About Hardware ......... 23

1.1 Should Software Engineers Worry About Hardware .........

remove all dots after the title, including the number

:%s/\..*$//

%s substitude all lines .. scaped dot twice, because 1.1 could be taken. .* all $ up to the end of the line // replace with nothing.

then the output is

1.1 Should Software Engineers Worry About Hardware

30. Find any line starting by any number

/^[0-9]

31. Delete the last character the end of the line

s/$//

32. Delete the last character at the end of the line if it is a number

s/.[1-9]$//

33. Delete the last two characters at the end of the line if they both were a number

s/.[1-9][1-9]$//

34. Delete the first n characters at the end of a line

replace n with the desired number of characters

:%s/^.\{3}//

35. Delete empty lines

:%g/^\s*$/d

36. Delete 1 or more of the preceding spaces at the end of the line

%s/\s\+$//

37. find any header or implementation name file (class.h class.m)

/\<\w*\.h\w*\>/

/\<\w*\.m\w*\>/

38. Find a file's name string like class.swift

/<\w*\.swift\w*>/

39. Find a swift or objective-c method like `nameMethod(parameter:)`

/\w*(.*:)/

40. Using your last course, find any number of digits at the end of a sentence in any line

/ [0-9]\+$//

Example:

1. [this is a test](blablablabla) Page 1234

It finds the space character and 1234, remember the space, to find this kind of pattern.

41. Enumerate selected lines

:let i=1 | '<,'>g/^/s//\=i.'. '/ | let i=i+1

42. Add/insert words to your own word list

zg

43. Cursor movement VIM

h - move cursor leftj - move cursor downk - move cursor upl - move cursor rightH - move to top of screenM - move to middle of screenL - move to bottom of screenw - jump forwards to the start of a wordW - jump forwards to the start of a word (words can contain punctuation)e - jump forwards to the end of a wordE - jump forwards to the end of a word (words can contain punctuation)b - jump backwards to the start of a wordB - jump backwards to the start of a word (words can contain punctuation)
% - move to matching character (default supported pairs: '()', '{}', '[]' - use :h matchpairs in vim for more info)0 - jump to the start of the line^ - jump to the first non-blank character of the line
$ - jump to the end of the lineg_ - jump to the last non-blank character of the linegg - go to the first line of the documentG - go to the last line of the document5G - go to line 5fx - jump to next occurrence of character xtx - jump to before next occurrence of character xFx - jump to previous occurence of character xTx - jump to after previous occurence of character x; - repeat previous f, t, F or T movement, - repeat previous f, t, F or T movement, backwards} - jump to next paragraph (or function/block, when editing code){ - jump to previous paragraph (or function/block, when editing code)zz - center cursor on screenCtrl + e - move screen down one line (without moving cursor)Ctrl + y - move screen up one line (without moving cursor)Ctrl + b - move back one full screenCtrl + f - move forward one full screenCtrl + d - move forward 1/2 a screenCtrl + u - move back 1/2 a screenTip Prefix a cursor movement command with a number to repeat it. For example, 4j moves down 4 lines.

44. Insert mode - inserting/appending text

i - insert before the cursor
I - insert at the beginning of the line
a - insert (append) after the cursor
A - insert (append) at the end of the line
o - append (open) a new line below the current line
O - append (open) a new line above the current line
ea - insert (append) at the end of the word
Esc - exit insert mode

45 Paste over text betwwen two parenthesis

Yank the content of the first pair of parentheses.

yi)

Visually select the content of the second pair of parentheses and put:

yi)p

(jdksadjksaldjksaljdklasdjklasdskad) (jdksadjksaldjksaljdklasdjklasdskad)

46 Join lines

Create a command or macro for VIM in order to put in one line this following text:

"The view layer contains all the objects that you see on the user screen
and objects that support them. Among the examples are classes that are
subclasses of UIView like UIButton, UITableView, and more. But not only
are views part of this layer – you can also find transitions, Core Graphics
code, animation, layouts, images, and colors."

As you can see it contains new lines after "screen", "are", "only" and "Graphics" words, remove these new lines and the complete sentence should be on one line. Create a macro or command in VIM in order to do this.

Option 1: Visual Selection + Join

Select the paragraph visually, then join all lines:

vim

vipJ

vip — select the inner paragraph J — join all selected lines into one

47

To replace all irregular spacing (tabs, multiple spaces, or newlines) and separate all words with a single space all over the file, run the following command in Vim's normal mode:

vim:%s/\s\+/ /g

Use code with caution.i Here is exactly how this actionable command works:

:%s: Tells Vim to run a substitution (search and replace) across the entire file (from line 1 to the end).
\s\+: The search pattern. It matches any sequence of whitespace characters (one or more), including tabs (\t), newlines, and multiple continuous spaces.
/ : The replacement. It replaces any match found with exactly one single space.
/g: The global flag. It ensures this substitution happens on every single occurrence in the line, rather than just the first one.

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