ECHO - Echo all arguments up to the next EOC to screen
SYNOPSIS
ECH [<arg1>[<arg2>]...] <EOC>
DESCRIPTION
Echo will print all of its arguments up to the next <EOC> to the screen.
<EOC> can be either a newline or a semicolon. It is a handy way to get
output from a Piglet script, or to read the value of a shell variable.
For example, "ECHO $PATH" will print out the value of the current PATH
environment variable.