Vim

To exit Vim type   :q!    trash all changes

  :wq    save the changes

To delete from the cursor up to the next word type:    dw

To delete from the cursor to the end of a line type:    d$

To delete a whole line type:    dd

To repeat a motion prepend it with a number:   2w

To replace the character under the cursor, type   r   and then the

character you want to have there.

Type  ce  to change from the cursor to the end of the word,  c$  to change to the end of a line.

The format for change is:

                       c   [number]   motion

CTRL-G  displays your location in the file and the file status.

             G  moves to the end of the file.

     number  G  moves to that line number.

            gg  moves to the first line.

Typing  /  followed by a phrase searches FORWARD for the phrase.

Typing  ?  followed by a phrase searches BACKWARD for the phrase.

After a search type  n  to find the next occurrence in the same direction

or  N  to search in the opposite direction.

CTRL-O takes you back to older positions, CTRL-I to newer positions.

Typing  %  while the cursor is on a (,),[,],{, or } goes to its match.

To substitute new for the first old in a line type    :s/old/new

To substitute new for all ‘old‘s on a line type       :s/old/new/g

To substitute phrases between two line #‘s type       :#,#s/old/new/g

To substitute all occurrences in the file type        :%s/old/new/g

To ask for confirmation each time add ‘c‘             :%s/old/new/gc

  :!command  executes an external command.

  :w FILENAME  writes the current Vim file to disk with name FILENAME.

   v  motion  :w FILENAME  saves the Visually selected lines in file

 FILENAME.

  :r FILENAME  retrieves disk file FILENAME and puts it below the

      cursor position.

  :r !dir  reads the output of the dir command and puts it below the

      cursor position.

Type  o  to open a line BELOW the cursor and start Insert mode.

Type  O  to open a line ABOVE the cursor.

Type  a  to insert text AFTER the cursor.

Type  A  to insert text after the end of the line.

The  e  command moves to the end of a word.

The  y  operator yanks (copies) text,  p  puts (pastes) it.

Typing a capital  R  enters Replace mode until  <ESC>  is pressed.

Typing ":set xxx" sets the option "xxx".  Some options are:

       ‘ic‘ ‘ignorecase‘       ignore upper/lower case when searching

       ‘is‘ ‘incsearch‘        show partial matches for a search phrase

       ‘hls‘ ‘hlsearch‘        highlight all matching phrases

     You can either use the long or the short option name.

Prepend "no" to switch an option off:   :set noic

Type  :help  or press <F1> or <Help>  to open a help window.

Type  :help cmd  to find help on  cmd .

Type  CTRL-W CTRL-W  to jump to another window

Type  :q  to close the help window

Create a vimrc startup script to keep your preferred settings.

When typing a  :  command, press

CTRL-D to see possible completions.

     Press <TAB> to use one completion.