smbclient -h
Usage: [-?] [-?EgV] [-?EgV] [-?EgVNkP] [-?|--help] [--usage] [-R|--name-resolve NAME-RESOLVE-ORDER]
        [-M|--message HOST] [-I|--ip-address IP] [-E|--stderr] [-L|--list HOST]
        [-t|--terminal CODE] [-m|--max-protocol LEVEL] [-T|--tar <c|x>IXFqgbNan]
        [-D|--directory DIR] [-c|--command STRING] [-b|--send-buffer BYTES]
        [-p|--port PORT] [-g|--grepable] [-d|--debuglevel DEBUGLEVEL]
        [-s|--configfile CONFIGFILE] [-l|--log-basename LOGFILEBASE]
        [-V|--version] [-O|--socket-options SOCKETOPTIONS]
        [-n|--netbiosname NETBIOSNAME] [-W|--workgroup WORKGROUP]
        [-i|--scope SCOPE] [-U|--user USERNAME] [-N|--no-pass] [-k|--kerberos]
        [-A|--authentication-file FILE] [-S|--signing on|off|required]
        [-P|--machine-pass] service <password>