help on the "x" command, for example, enter the following: >

	:help x

To find out how to delete text, use this command: >

	:help deleting

To get a complete index of all Vim commands, use the following command: >

	:help index

When you need to get help for a control character command (for example,
CTRL-A), you need to spell it with the prefix "CTRL-". >

	:help CTRL-A

The Vim editor has many different modes.  By default, the help system displays
the normal-mode commands.  For example, the following command displays help
for the normal-mode CTRL-H command: >

	:help CTRL-H

To identify other modes, use a mode prefix.  If you want the help for the
insert-mode version of a command, use "i_".  For CTRL-H this gives you the
following command: >

	:help i_CTRL-H

When you start the Vim editor, you can use several command-line arguments.
These all begin with a dash (-).  To find what the -t argument does, for
example, use the command: >

	:help -t

The Vim editor has a number of options that enable you to configure and
customize the editor.  If you want help for an option, you need to enclose it
in single quotation marks.  To find out what the 'number' option does, for
example, use the following command: >

	:help 'number'

The table with all mode prefixes can be found below: |help-summary|.

Special keys are enclosed in angle brackets.  To find help on the up-arrow key
in Insert mode, for instance, use this command: >

	:help i_<Up>

If you see an error message that you don't understand, for example:

	E37: No write since last change (use ! to override) ~

You can use the error ID at the start to find help about it: >

	:help E37


Summary:					*help-summary*  >

1) Use Ctrl-D after typing a topic and let Vim show all available topics.
   Or press Tab to complete: >
	:help some<Tab>
<   More information on how to use the help: >
	:help helphelp

2) Follow the links in bars to related help.  You can go from the detailed
   help to the user documentation, which describes certain commands more from
   a user perspective and less detailed.  E.g. after: >
	:help pattern.txt
<   You can see the user guide topics |03.9| and |usr_27.txt| in the
   introduction.

3) Options are enclosed in single apostrophes.  To go to the help topic for the
   list option: >
	:help 'list'
<   If you only know you are looking for a certain option, you can also do: >
	:help options.txt
<   to open the help page which describes all option handling and then search
   using regular expressions, e.g. textwidth.
   Certain options have their own namespace, e.g.: >
	:help cpo-<letter>
<   for the corresponding flag of the 'cpoptions' settings, substitute <letter>
   by a specific flag, e.g.: >
	:help cpo-;
<   And for the 'guioptions' flags: >
	:help go-<letter>

4) Normal mode commands do not have a prefix. To go to the help page for the
   "gt" command: >
	:help gt

5) Insert mode commands start with i_.  Help for deleting a word: >
	:help i_CTRL-W

6) Visual mode commands start with v_.  Help for jumping to the other side of
   the Visual area: >
	:help v_o

7) Command line editing and arguments start with c_.  Help for using the
   command argument %: >
	:help c_%

8) Ex-commands always start with ":", so to go to the ":s" command help: >
	:help :s

9) Commands specifically for debugging start with ">".  To go to the help
   for the "cont" debug command: >
	:help >cont

10) Key combinations.  They usually start with a single letter indicating
    the mode for which they can be used.  E.g.: >
	:help i_CTRL-X
<    takes you to the family of CTRL-X commands for insert mode which can be
    used to auto-complete different things.  Note, that certain keys will
    always be written the same, e.g. Control will always be CTRL.
    For normal mode commands there is no prefix and the topic is available at
    :h CTRL-<Letter>. E.g.  >
	:help CTRL-W
<    In contrast >
	:help c_CTRL-R
<    will describe what the CTRL-R does when entering commands in the Command
    line