nc#
nc is a psh applet related to networking. It allows for managing TCP and UDP connections and sending data through
them.
Running nc with -h argument prints help message as follows:
Usage: nc [options] [destination] [port]
Options
-4: IPv4 only
-6: IPv6 only
-h: prints help
-l: listen mode, required port number
-p: source port
-s: source addr
-u: datagram socket