What is the VI editor

Users who use UNIX or Linux systems often hear someone say open a certain file, or VI open, or EE open the file, then what is the VI editor?

What is the VI editor

VI Editor is developed with the UNIX operating system, the VI editor is a powerful editor, is also the standard UNIX operating system editor, unfortunately, vi editor shun is not suitable for beginners to use, and it is difficult to grasp, this is because it does not have a menu, All operations must be done through the keyboard and a specific shortcut key combination, accustomed to the Windows System Editor of the first Contact VI will feel very unaccustomed, these need to spend time to learn and habits.

In addition VI editors in Linux also many systems are likewise available.