#!/usr/bin/perl
use strict;
use warnings;

print "abc" => "xyz\n"; #prints abcxyz
print abc => "xyz\n";   #prints abcxyz
print "abc", "xyz\n";   #prints abcxyz (most natural formulation)
#print abc, "xyz\n";    #prints No comma allowed after filehandle at C:\Projects_Perl\testing\junk1.pl line 7.