====== Vim ======

''vim'' is a modal editor (improving on vi). It can run without graphics, is ubiquitous, powerful, and efficient but is an acquired skill.

  * **MIT's "missing semester" has an excellent summary of vim functions [[https://missing.csail.mit.edu/2020/editors/|video and notes]].** 
Vim’s design is based on the idea that a lot of programmer time is spent reading, navigating, and making small edits, as opposed to writing long streams of text. For this reason, Vim has multiple operating modes.
  - Normal: for moving around a file and making edits
  - Insert: for inserting text
  - Replace: for replacing text
  - Visual (plain, line, or block): for selecting blocks of text
  - Command-line: for running a command

  * ''vimtutor'' is a program included with vim that will guide you through usage -- run it from the command line.
  * [[https://github.com/vimwiki/vimwiki|vim-wiki]]


===== Commands =====

Victoria's review: a minimal vim session experience:

  - ''vim $filename'' -> opens a file in vim. If that file doesn't exist or you opened it in the wrong filepath, you will see an empty blank vim that says ''[NEW]'' at the bottom
  - ''i'' -> puts you in **i**nsert mode so you can freely type and move your cursor around. Says ''-- INSERT --'' in bottom left.
  - ''esc'' -> gets you out of insert mode
  - '':set nu'' shows you line numbers

move around
  - ''0'' or ''Home'' puts your cursor to the beginning of the line (in command mode)
  - ''$'' or ''End'' puts your cursor to the end of the line (in command mode)
  - ''Shift + i'' puts your cursor to the beginning of the line and opens insert mode
  - ''Shift + a'' puts your cursor to the end of the line and opens insert mode
  - ''o'' opens insert mode on a new line below your cursor
  - up and down arrows move you up and down each line but to move between lines click ''g'' then up or down arrow
  - ''u'' undo last change (in command mode)
close vim temporarily
  * ''Ctrl + z'' puts the vim window to "sleep" and brings you back to the terminal
  * ''fg'' brings you from the terminal back into the last script in vim you were working on
exit
    * '':q'' -> quits vim
    * '':wq'' -> saves what you wrote and quits vim 
    * '':q!'' -> does not save what you wrote and quits vim