Essential Vim Commands Every Linux User Should Know

VIM Editor commands:
:wq - save and exit
Shift + G - bottom of the file
gg - to go to top of the line
/QA - forward search + press N to go next occurrence
?QA - backward search + press n for next occurrence
Replace:
:%s/QA/TEST/g - replace all QA to TEST
Undo and redo:
In Command mode press u - for undo
Ctrl +r - for REDO
insert
Press o - for next line +insert mode
Shift + o - for previous line +insert mode
I - insert mode at the start of the line
Shift + a - insert mode at the end of the line
Press x - to delete a charcter
Paste
P - paste in next line
Shift + p - paste in prev line
Copy and paste:
Shift + v ( for selecting the entire line )
Press v - to bring in visual mode and now you can use right arrow to select the lines ( THIS selects all the visual lines )
Now press y ( for copy )
Press p ( paste )
For display line number in file
:set nu
For removing line number in file
:set nonu
For turn off/on the color lines for script file
:syntax off
:syntax on
To go as line number:
:100 ( cursor go to 100th line )