Coping lines

It is different from all other Os
....
.....

. (DOT) is special command of linux.

Okay! I will stop.

I love linux.
It is different from all other Os

My brother Vikrant also loves linux.

NOTE Here 1,4 means copy 1 to 4 lines; co command stands for copy; $ is end of file. So it mean copy first four line to end of file. You can delete this line as follows
:18,21 d
Okay! I will stop.
:1,$ p

I love linux.

It is different from all other Os

My brother Vikrant also loves linux.

He currently lerarns linux.

Linux is cooool.

Linux is now 10 years old.

Next year linux will be 11 year old.

Rani my sister never uses Linux

She only loves to play games and nothing else.

Do you know?

. (DOT) is special command of linux.

Okay! I will stop.