Usage: tftp [options] [host [port]] [-c command...]
  Options:
    -V, --version              print version number and exit
    -h, --help                 print this help text and exit
        --help=command         print the help text for "command" and exit
    -4. --ipv4                 only use IPv4, no IPv6
    -6. --ipv6                 only use IPv6, no IPv4
    -v, --verbose              increase logging verbosity
    -l, --literal              disable host:path syntax
    -m, --mode mode            set the transfer mode (netascii, octet)
    -a, --ascii                alias for --mode netascii
        --netascii             alias for --mode netascii
        --text                 alias for --mode netascii
    -b, --binary               alias for --mode octet
        --octet                alias for --mode octet
    -R, --port-range min:max   use emhermeral ports in the given range
    -B, --blocksize size       set the requested transfer block size
    -W, --windowsize size      set the requested transfer window size
    -T, --no-tsize             disable sending the tsize TFTP option
    -N, --no-options           disable sending any TFTP options
    -U, --unsafe               allow multihomed server address changes
    -c, --command command      execute "command", then exit (must be last)
    -c, --command help         get a list of available commands