:help [subject] attempts to find the "best" match for the argument you supply. The argument "can include wildcards like
[a-z] (any letter).
You can additionally use Vim's command-line completion with
:help spli<Ctrl-D> will display a list of help topics matching the pattern
To search for
Ctrl-based commands, like
:help ^V with a literal caret character, or even more specifically,
:help i_^V to get help on
Ctrl-V in insert mode.
As you see, vim has a nomenclature for its help topics. For instance, options are quoted (see
:h 'sw'), commands start with a colon (see
:h :split), functions end with empty brackets (see
:h split()), insert mode mappings start with
i_, command mode mappings start with
c_, and so on, except normal mode mappings that have no prefix.
|Search term||Help page|
|Configuration for line-length/text-width|
|Vimscript command to move the cursor around|
|Working with buffers; same as |