Most Common UNIX Commands Part - II

This time will be seeing about vi editor. Vi is not the only editor available we have other editors such as "ed", but Vi is the most commonly used editor across.

We know that file can be created by using "cat" ,"touch" commands it can also be created using vi editor

vi filename eg: vi test.txt

We can also use the above command to view the file

We need to press esc key every time we try to execute the below commands

Vi commands

Command	Description
i	Inserts text before current cursor location.
I	Inserts text at beginning of current line.
a	Inserts text after current cursor location.
A	Inserts text at end of current line.
x	Deletes the character under the cursor location.
X	Deletes the character before the cursor location
dd	Deletes the line the cursor is on.
yy	Copies the current line.
p	Puts the copied text after the cursor.
P	Puts the yanked text before the cursor.
:wq	Save and quite file
:q!	quit without saving file
:s/search/replace/g	replace text globally

The above commands are the most commonly used which should be sufficient for any developer working in Vi editor

Hope this article helps in understanding basic concepts of vi editor