Just use vim.

Open help for keyword

Save file as

Close current pane

Open a terminal window

Open man page for word under the cursor

Turn on line numbers

Turn off line numbers

Turn on relative line numbers

Turn off relative line numbers

Toggle case-insensitive search

Highlight all search matches

Show matches as you type

Run the built-in interactive Vim tutorial from the shell

Open a file

Open Vim with an empty buffer

Open multiple files as buffers

Open file at line 42

Open file and search for word

Move cursor left

Move cursor down

Move cursor up

Move cursor right

Move cursor down in wrapped lines

Move cursor up in wrapped lines

Move to top of screen

Move to middle of screen

Move to bottom of screen

Jump forward to the start of a word

Jump forward to the start of a WORD

Jump forward to the end of a word

Jump forward to the end of a WORD

Jump backward to the start of a word

Jump backward to the start of a WORD

Jump backward to the end of a word

Jump backward to the end of a WORD

Move to matching character: (), {}, []

Jump to the start of the line

Jump to the first non-blank character of the line

Jump to the end of the line

Jump to the last non-blank character of the line

Go to the first line of the document

Go to the last line of the document

Go to line 5

Move to local declaration

Move to global declaration

Open the file under the cursor

Jump to previous or next section

Jump to next occurrence of character x

Jump to just before next occurrence of x

Jump to previous occurrence of character x

Jump to just after previous occurrence of x

Repeat previous f, t, F, or T movement

Repeat previous f, t, F, or T movement backward

Jump to next paragraph

Jump to previous paragraph

Center cursor on screen

Position cursor at the top of the screen

Position cursor at the bottom of the screen

Move screen down one line without moving cursor

Move screen up one line without moving cursor

Move screen up one page

Move screen down one page

Move cursor and screen down half a page

Move cursor and screen up half a page

Insert before the cursor

Insert at the beginning of the line

Insert after the cursor

Insert at the end of the line

Open a new line below the current line

Open a new line above the current line

Insert at the end of the word

Delete the character before the cursor

Delete word before the cursor

Add a line break at the cursor position

Indent line one shiftwidth

De-indent line one shiftwidth

Insert next auto-completion match

Insert previous auto-completion match

Insert the contents of register x

Temporarily enter normal mode for command x

Exit insert mode

Replace a single character

Replace characters until Esc is pressed

Join line below with one space in between

Join line below without a space

Reflow paragraph

Switch case up to motion

Change to lowercase up to motion

Change to uppercase up to motion

Change entire line

Change to the end of the line

Change entire word

Change to the end of the word

Delete character and substitute text

Delete line and substitute text, same as cc

Transpose two letters

Reformat selected lines

Increment number under cursor

Decrement number under cursor

Sort lines alphabetically

Sort lines in reverse alphabetical order

Sort lines and remove duplicates

Undo

Restore last changed line

Redo

Undo last 5 changes

Go back to the state from 5 minutes ago

Go forward 5 minutes in the undo history

Show the full undo tree

Repeat last command

Start visual mode, then issue a command such as y

Start linewise visual mode

Move to other end of marked area

Start visual block mode

Move to other corner of block

Mark a word

A block with ()

A block with {}

A block with <> tags

Inner block with ()

Inner block with {}

Inner block with <> tags

Change, delete, or yank text inside double quotes

Change, delete, or yank text inside ()

Re-select the previous visual selection

Exit visual mode

Shift text right

Shift text left

Yank marked text

Delete marked text

Switch case

Change marked text to lowercase

Change marked text to uppercase

Show registers content

Yank into register x

Paste contents of register x

Yank into the system clipboard register

Paste from the system clipboard register

Last yank

Unnamed register, last delete or yank

Current file name

Alternate file name

Clipboard contents (X11 primary)

Clipboard contents (X11 clipboard)

Last search pattern

Last command-line

Last inserted text

Last small (less than a line) delete

Expression register

Black hole register

List all marks

Set current position as mark A

Jump to position of mark A

Yank text to position of mark A

Go to the position where Vim was previously exited

Go to the position when last editing this file

Go to the position of the last change in this file

Go to the position before the last jump

List of jumps

Go to newer position in jump list

Go to older position in jump list

List of changes

Go to newer position in change list

Go to older position in change list

Jump to the tag under cursor

Jump back from tag

Record macro a

Stop recording macro

Run macro a

Rerun last run macro

Yank a line

Yank 2 lines

Yank from cursor to start of next word

Yank word under the cursor

Yank word under the cursor and surrounding space

Yank to end of line

Yank from cursor to start of line

Delete from cursor to start of line

Paste from the yank register, unaffected by later deletes

Put clipboard after cursor

Put clipboard before cursor

Put after cursor and leave cursor after the new text

Put before cursor and leave cursor after the new text

Delete a line

Delete 2 lines

Delete from cursor to start of next word

Delete word under the cursor

Delete word under the cursor and surrounding space

Delete until *

Delete lines 3-5

Delete all lines containing pattern

Delete all lines not containing pattern

Delete to end of line

Delete character

Indent line one shiftwidth

De-indent line one shiftwidth

Indent a block with () or {} (cursor on brace)

De-indent a block with () or {} (cursor on brace)

Indent inner block with ()

Indent a block with <> tags

Re-indent 3 lines

Re-indent a block with () or {} (cursor on brace)

Re-indent inner block with {}

Re-indent entire buffer

Paste and adjust indent to current line

Write the file, but do not exit

Write the current file using sudo

Write and quit

Quit (fails if there are unsaved changes)

Quit and throw away unsaved changes

Write and quit on all tabs

Search forward for pattern

Search backward for pattern

Very magic pattern: non-alphanumeric characters are treated as regex

Repeat search in same direction

Repeat search in opposite direction

Replace all old with new throughout the file

Replace all occurrences with confirmation

Replace all occurrences in lines 5-10

Search forward for word under cursor

Search backward for word under cursor

Remove highlighting of search matches

Search for pattern in multiple files

Jump to the next match

Jump to the previous match

Open a window containing the list of matches

Close the quickfix window

Turn on spell checking

Jump to next spelling error

Jump to previous spelling error

List possible replacements

Open a file in a new tab

Move the current split window into its own tab

Move to the next tab

Move to the previous tab

Move to tab number #

Move current tab to position # (indexed from 0)

Close the current tab and all its windows

Close all tabs except the current one

Run command on all tabs

Edit a file in a new buffer

Go to the next buffer

Go to the previous buffer

Delete a buffer (close a file)

Go to a buffer by index #

Go to a buffer by file name

List all open buffers

Open a file and split window horizontally

Open a file and split window vertically

Edit all buffers as vertical windows

Edit all buffers as tabs

Reload the current file, discarding changes

Insert the contents of file below the cursor

Insert the output of shell command cmd below the cursor

Split window horizontally

Split window vertically

Switch windows

Quit a window

Exchange current window with next one

Make all windows equal height and width

Move cursor to the left window

Move cursor to the right window

Move cursor to the window below

Move cursor to the window above

Make current window full height at far left

Make current window full height at far right

Make current window full width at the very bottom

Make current window full width at the very top

Manually define a fold up to motion

Delete fold under the cursor

Toggle fold under the cursor

Open fold under the cursor

Close fold under the cursor

Reduce (open) all folds by one level

Fold more (close) all folds by one level

Toggle folding functionality

Jump to start of next change

Jump to start of previous change

Obtain diff (get changes from other file)

Put diff (push changes to other file)

Make current window part of the diff

Update diff

Switch off diff mode for current window