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  1. or download this
    #! perl -slw
use strict;
...
my $end = time;
printf "Took %.6f seconds\n", $end - $start;
  2. or download this
    #! perl -slw
use strict;
...
my $end = time;
printf "Took %.6f seconds\n", $end - $start;
  3. or download this
    #! perl -slw
use strict;
...
my $end = time;
printf "Took %.6f seconds\n", $end - $start;