Many people are just worried if their arrow keys work in Insert mode. See above about how you are supposed to Navigate in Command mode. Your email address will not be published. Vi [filename]. Vim [filename]. Vi Screen. Vim Screen. Next Compare two files in Linux - Using diff, vimdiff, and colordiff. Comments Dave says:. February 14, at pm. Vi is a visual text editor. Before visual editors, there were line editors which used to operate on a single line of text at a time.
To use a line editor you have to tell the line editor to go to a particular line and describe what change you want to make, such as adding or deleting text. With the advent of video terminals, visual editing became possible. Vi was created to allow editing on a video terminal with a moving cursor. Vi derives its name from the word visual. The first version of vi was written in by Bill Joy. Line editors, instead of giving a complete overview of a text file, used to show only the current line that the user was working with.
Vi was the first editor that worked in a mode where the complete text file was displayed which made it possible to move back and forward between lines. Because of this, in the text editors' historical context, Vi was a big achievement that prepared a base for several modern visual text editors.
One such a modern text editor is Vim. Vim is purely based on Vi. Vim stands for Vi-Improved , the user-friendly version of Vi. It is an implementation of the Vi standard with many additions.
It is the most commonly used implementation of the standard. Most Linux distributions come with Vim already installed. In Vi and Vim , the ex mode is similar to a command line mode which allows you to enter ex commands. Vim is the most commonly found implementation of the standard on Linux systems.
Often, the command vi will start the vim command. Nowadays, Vim is also found on most Unix systems and macOS. In general, Vim will start by default in a Vi compatibility mode which can be disabled.
To benefit fully from Vim improvements you may need to disable the Vi compatibility mode with the command :set nocompatible or by starting vim with the -N option. The compatible mode will be automatically turned off when a. Below is a non-exhaustive list of the most notable improvements of Vim over Vi.
Somehow, Vi only implements one level of undo using the command u. Later new functionality was added, and by version 1. Vi is the standard text editor. It is the classic and most popular text editor in the Linux family that comes built-in in the most Linux distributions.
Vim is a vi-like editor but is more advanced and powerful than the original Vi. Let now see what are the main differences between them. One of the best features of the vim editor is multilevel undo, meaning you can undo changes multiple times. If you accidentally delete a line of text, then delete a second line, and then the third line, you can undo each of the four deletes. On the other hand, vi editor does not support multilevel undo.
Certainly one of the key selling points of Vim over Vi is its syntax highlighting. Vim can be programmed to highlight portions of the buffer in different colors or styles, based on the type of file being edited. Vim works well at a console, but it can run natively in many GUIs. It is designed for use both from a command-line interface and as a standalone application in a graphical user interface.
Vim uses native GUI widgets for scrolling, dividing buffers, and has mouse support. It can also talk to the clipboard.
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