SNS

Vi

= Original Text Editor (Vi stands for Visual Editor)
Created by Bill Joy in 1976 (late 70s)
Vim (Vi IMproved aka vim), created by Bram Moolean in 1991 (early 90s) with improvements
- Now has syntax highlighting
- Allows search and replace with regrex
- support for customization and plugins
- avaliable on all platforms (Linux, Windows, MacOS, etc)

Start of line vervus EOL / End of line :
- End of line (EOL)
  - $ or g_: Jumps to (second to) last char of the current line
    - $: Jumps to TRUE ENDING of current line
    - g_: Jumps to last non-blank of current line
    - A : Jumps to EOL, End of char and append immediate by starting to insert
- Start of line (SOL)
- 0 or ^: Jumps to first char of the current line
  - 0: Jumps to TRUE BEGINNING of current line
  - ^: Jumps to first non-blank of current line
- TL;DR –> 0 < ^ < g_ <$
- Or with a diagram
```
      [ ] [ ] [ ] [ ] [d] [e] [f] [ ] [m] [y] [_] [f] [u] [n] [c] [ ] [ ] [ ]
          ↑               ↑                                           ↑     ↑
          0               ^                                           g_    $
          (Col 1)     (First Text)                                (Last Text) (Absolute End)
```
Under insert mode, if you wish to add to the last line:
- Insert Mode –> Ctrl + o –> $
- Note: Ctrl+o allows user to temp switch over to normal mode for one single command only