Usage: wget [-c|--continue] [-s|--spider] [-q|--quiet] [-O|--output-document file]
			[--header 'header: value'] [-Y|--proxy on/off] [-P DIR]
			[-U|--user-agent agent] url

Retrieve files via HTTP or FTP

Options:
	-s	Spider mode - only check file existence
	-c	Continue retrieval of aborted transfer
	-q	Quiet
	-P	Set directory prefix to DIR
	-O	Save to filename ('-' for stdout)
	-U	Adjust 'User-Agent' field
	-Y	Use proxy ('on' or 'off')
