Demonstration of some Perl punctuation variables which affect `print`

perl-print.pl

use strict;
use warnings;

{
	local $\ = "\n";  # output record separator
	local $| = 1;     # autoflush
	
	print "Hello";
	print "World";
}

# or for better clarity...

{
	use English;
	local $OUTPUT_RECORD_SEPARATOR = "\n";
	local $OUTPUT_AUTOFLUSH = 1;
	
	print "Hello";
	print "World";
}

# Because we used `local` to set them, the changes were
# locally scoped, so they went back to the defaults at
# the end of each block.

print "Hello";    # no new line!
print "World\n";

Oh, I forgot $, (a.k.a. $OUTPUT_FIELD_SEPARATOR) but Perl has that too.