[root@localhost:~] wget --help
BusyBox v1.29.3 (2021-01-17 01:25:00 PST) multi-call binary.
Usage: wget [-c|--continue] [--spider] [-q|--quiet] [-O|--output-document FILE]
[-o|--output-file FILE] [--header 'header: value'] [-Y|--proxy on/off]
[--no-check-certificate]
[-P DIR] [-S|--server-response] [-U|--user-agent AGENT] URL...
Retrieve files via HTTP or FTP
--spider Only check URL existence: $? is 0 if exists
--no-check-certificate Don't validate the server's certificate
-c Continue retrieval of aborted transfer
-q Quiet
-P DIR Save to DIR (default .)
-S Show server response
-O FILE Save to FILE ('-' for stdout)
-o FILE Log messages to FILE
-U STR Use STR for User-Agent header
-Y on/off Use proxy
[root@localhost:~]