A slight variation. Use a string and substr rather than an array. I also use a backspace rather than \r so that you can hang the spinner on the end of a line with out having to reprint the whole line each time. Stops the whole line flickering. 

#! perl -sw
use strict;
$|++;

sub spinner{ 
    my ($s, $n) = (shift,0); 
    return sub{ substr( $s, $n++ % length $s,1) . "\cH"; }
}

my $spinner = spinner '-\|/';

print "Working ";
print $spinner->() for 1 .. 10000;

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In reply to Re: Way of the Spinner (repost) by BrowserUk
in thread Way of the Spinner (repost) by !unlike

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