Vim: An Essential Tool for Editing Files

Vim (Vi Improved) is a powerful and flexible text editor used in Unix-like systems. It builds on the original Vi editor with additional features and improvements, including multi-level undo, syntax highlighting, and an extensive set of commands for text manipulation.

Vim operates primarily in three modes:

A simple use of Vim to edit a 'example.txt' file would look like this:

vim example.txt

To insert new content, press 'i' for 'insert mode'. After editing, press 'ESC' to go back to 'command mode', and type ':wq' to save and quit.

To learn more, visit this:

Check out this Github repo on Vim from basic to advanced.