unless getopts("b:di:m:nh", "help")
error "illegal option specified"
end
usage if $OPT_h
initialization
$do_not_run_but_trace = true if $OPT_n
$broadcast_ip_address = $OPT_b if $OPT_b
if not $broadcast_ip_address
error "broadcast address not specifed"
end
$delayed_statup = true if $OPT_d
$intervaltime = $OPT_i if $OPT_i
$number_of_wakeup_machines = $OPT_m if $OPT_m
specified_hosts = ARGV if not ARGV.empty?
なかんじ