Vim is a text editor intended to be used in a CLI (command line interface) environment. It is highly configurable and built with efficiency in mind, without the need of a mouse or a graphical interface. It was built to be an improved version of the UNIX editor 'VI', or VI improved. That being said, VIM also has a GUI (Graphical User Interface) version named GVIM that shares the same core functionality as VIM but allows users additional feature such as additional menu and toolbars.
- Once the file is opened and displayed, press the key 'I' to go into INSERT mode to edit the file. This can be verified with the text "Insert Mode" at the bottom of your screen. From here you can make any changes you want to the text of your file.