command provides interactive help on all supported commands and options.
If, for some reason, you happen to spot a discrepancy in the output of this
command and this document, the command is the authoritative source of
If no arguments are provided, the command prints the list of common options
and the list of supported subcommands.
argument is provided to, this single argument is the name of a valid
subcommand. In that case,
prints a textual description of the command, the list of common options and
the list of subcommand-specific options.