Print a help message describing all of Wget's command-line options.
-b
--background
Go to background immediately after startup. If no output file is
specified via the -o, output is redirected to wget-log.
-e command
--execute command
Execute command as if it were a part of .wgetrc
(see Startup File). A command thus invoked will be executed
after the commands in .wgetrc, thus taking precedence over
them. If you need to specify more than one wgetrc command, use multiple
instances of -e.