You imply, but don't say explicitly, that all your arrays are the same size. Is this correct? Assuming it is, you have something like: 

@numbers = (1,2,3,4,5,6,7);
@words = ('one', 'two', 'three', 'four', 'five', 'six', 'seven');
@odd_even = ('odd', 'even', 'odd', 'even', 'odd', 'even', 'odd');
@prime = ('not', 'prime', 'prime', 'not', 'prime', 'not', 'prime');

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And you want to be able to sort all of them together, based on one of them -- bringing the even numbers to the front, say?

Have you considered an array of arrays? 

@numbers_with_attributes = ( [1, 'one', 'odd', 'not'], 
                             [2, 'two', 'even', 'prime'],
                             [3, 'three', 'odd', 'prime'],
                             [4, 'four', 'even', 'not'],
                             [5, 'five', 'odd', 'prime'],
                             [6, 'six', 'even', 'not'],
                             [7, 'seven', 'odd', 'prime'],
                           );
@alpha_sort = sort { $a[1] cmp $b[1] } @numbers_with_attributes;

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In reply to Re: Remembering original order of an array by menolly
in thread Remembering original order of an array by seaver

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