Create a connection to a host and port, transfer data in STDIO to connected host

Multipurpose relay (SOcket CAT).
More information: <http://www.dest-unreach.org/socat/>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

socat - TCP4:www.example.com:80

click the source code to copy install socat on any operating system with command-not-found.com