The argument of print is just a list or array and so
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print "Hello"," Rest", "of World"; # or
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print @fred; # are legal
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One can read in a whole array to a list where each entry of list is one line of file. For instance one can set @file to be all of standard input by:
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@file = <STDIN>; # We will learn how to do for arbitrary files
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As mentioned, double quoted strings use variable interpolation for arrays as in
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$string = "This is a full list @fred \n";
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$string = " First value in fred list is $fred[0] \n";
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Slices and variable indices can also be used in variable interpolation
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