VI Editor Quick Reference

Mostly use commands:Create new file name perlFile.pl or open existing file named perlFile.pl.

#vi perlFile.pl

press letter "i" in the keybord for write to the file

Write what eve you want...

If you want to delete a character under cursor:  move pointer on top to the letter, press <Esc> and press letter "x".

To delete character before cursor: move pointer  before the letter , press <Esc> and   press letter "X".

To delete a line: move the pointer to anywhere in the line , press <Esc> and press the letter "dd".
Delete everything in the file: Press <Ese> ":1,$d" and press <Enter>


Save the file : Press <Ese> "wq!"  and press <Enter>
Quite without saving :Press <Ese> "q!"  and press <Enter>