Sortation of many lists according the second field

I must sort many lists like
@l1 = ($a1,$b1,$c1,$d1);
@l2 = ($a2,$b2,$c2,$d2); ... @ln=($an,$bn,$cn,$dn);

The sortation of the lists  is done according of the second field of the lists. The order of the list should be
upstairs, example:
$b2 < $b1  =>  @l2 < @l1

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sort { $a->[1]<=>$b->[1] }
Before using Ozo's solution, create an array whose elements are the references to your arrays @l1, @l2, ..., @ln.

# replace the ... with the actual array references below
@array_list = (\@l1, \@l2, ..., \@ln);

# sort the array list
@sorted_list = sort { $a->[1] <=> $b->[1] } @array_list;

# if the aray elements are strings, use 'cmp' instead of <=>
@sorted_list = sort { $a->[1] cmp $b->[1] } @array_list;

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