-h, --help print this help text and exit
--version print program version and exit
-h, --help print this help text and exit
--version print program version and exit
-i, --ignore-errors continue on download errors
--dump-user-agent display the current browser identification
--user-agent UA specify a custom user agent
-i, --ignore-errors continue on download errors
--dump-user-agent display the current browser identification
--user-agent UA specify a custom user agent