@c Copyright (C) 1993, 1994, 1995 John W. Eaton
@c This is part of the Octave manual.
@c For copying conditions, see the file gpl.texi.

@node Help, Programming Utilities, Command History Functions, Top
@chapter Help

@findex help

Octave's @code{help} command can be used to print brief usage-style
messages, or to display information directly from an on-line version of
the printed manual, using the GNU Info browser.  If invoked without any
arguments, @code{help} prints a list of all the available operators,
functions, and built-in variables.  If the first argument is @code{-i},
the @code{help} command searches the index of the on-line version of
this manual for the given topics.

For example, the command

@example
help help
@end example

@noindent
prints a short message describing the @code{help} command, and

@example
help -i help
@end example

@noindent
starts the GNU Info browser at this node in the on-line version of the
manual.

@xref{Using Info}, for complete details about how to use the GNU Info
browser to read the on-line version of the manual.
