Slow print the text!!

Print the desired text slowly using perl.

#!/usr/bin/perl

$DELAY = ($ARGV[0] =~ /^-([.\d]+)/) ? (shift, $1) : 1;
$| = 1;
$_ = "Print this";
while ($_) {
    for (split(//)) {
            print;
                    select(undef,undef,undef, 0.005 * 20);
                      }
        $_ = "";
           }

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