Task

Cause a line printer attached to the computer to print a line containing the message:    Hello World! 



Note

A line printer is not the same as standard output.

A   line printer   was an older-style printer which prints one line at a time to a continuous ream of paper.

With some systems, a line printer can be any device attached to an appropriate port (such as a parallel port).




package main
 
import (
	"fmt"
	"os"
)
 
func main() {
	lp0, err := os.Create("/dev/lp0")
 
	if err != nil {
		panic(err)
	}
 
	defer lp0.Close()
 
	fmt.Fprintln(lp0, "Hello World!")
}