These are a few quick tips how to make it real. First what you need: two computers , both to have bash and ssh installed and 'authorized_keys' file with public rsa key from the caller machine (only if you want to have communication without password typing)

Now let's do it :

1. Make a simple bash script which we want to execute on a remote machine. You are able to use this one:

#!/bin/bash
echo "Greetings from "$(uname -n)
exit 0

2. Execute this script on a remote machine by running this:

cat simple.sh | ssh user@remote /bin/bash

You should see this output:

Greetings from remote

It's unbelievably simple isn't it ? You send content of the script file through the pipe to a remote machine on which you connect via ssh and where you run the bash in which you execute the script that come from your computer . Due to these nice features i do really love unix