user
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).
assistant
(formerly Perl 6)

```
my $lp = open '/dev/lp0', :w;
$lp.say: 'Hello World!';
$lp.close;

```

Or using `given` to avoid having to write the variable name repeatedly:

```
given open '/dev/lp0', :w {
    .say: 'Hello World!';
    .close;
}

```