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, help prints a list of all the available operators,
functions, and built-in variables. If the first argument is -i,
the help command searches the index of the on-line version of
this manual for the given topics.
For example, the command
help help
prints a short message describing the help command, and
help -i help
starts the GNU Info browser at this node in the on-line version of the manual.
See section Using Info, for complete details about how to use the GNU Info browser to read the on-line version of the manual.
The help command can give you information about operators, but not the
comma and semicolons that are used as command separators. To get help
for those, you must type help comma or help semicolon.
INFO_FILE names the location of the Octave info file.
The default value is "/usr/local/info/octave.info".
INFO_PROGRAM names the info program to run. Its
initial value is
/usr/local/libexec/octave/VERSION/exec/ARCH/info, but
that value can be overridden by the environment variable
OCTAVE_INFO_PROGRAM, or the command line argument
--info-program NAME, or by setting the value of
INFO_PROGRAM in a startup script.
suppress_verbose_help_message is nonzero, Octave
will not add additional help information to the end of the output from
the help command and usage messages for built-in commands.
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