print "Hello world!\n";

##</code><code>##

[Ordinateur-de-me-XoX:~] exox% perl example.pl
Hello world!
[Ordinateur-de-me-XoX:~] exox% 

##</code><code>##

[Ordinateur-de-me-XoX:~] exox% print "Hello World!\n";
print: Command not found.
[Ordinateur-de-me-XoX:~] exox% 

##</code><code>##

[Ordinateur-de-me-XoX:~] exox% perl example.pl