BusyBox v1.29.3 (2018-11-02 15:37:50 PDT) multi-call binary.
Usage: wget [-c|--continue] [--spider] [-q|--quiet] [-O|--output-document FILE]
[--header 'header: value'] [-Y|--proxy on/off] [-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
-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)
-U STR Use STR for User-Agent header
-Y on/off Use proxy