4.1.1 At the Command Line

All options specified at the command line have the following basic format:

--option[=value]

where the ‘=’ can be replaced by whitespace.

Some options also have single letter abbreviations of the form:

letter [optional_whitespace value]

Any non-ASCII characters are expected to be in the encoding specified by the current locale.

To reset an option to the default value, prefix the option with a ‘reset-’ and don’t specify a value.