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Extending this logic a bit, and using <DATA> to read in the test data:
use strict; use warnings; my ($first_line, $current_line); while (<DATA>) { chomp; # get rid of newline # get the first line sorted if ($. == 1) { $first_line = join ",", sort( split /,/,); } else { #die if doesn't match the first line sorted. $current_line = join ",", sort( split /,/,); die "$_ didn't match first line" unless $current_line eq $firs +t_line; } } __DATA__ ~cake,pastry,donuts,meringue pastry,~cake,meringue,donuts meringue, donuts,pastry,~cake,meringue
This dies on the third line, as it should.

In reply to Re^3: string comparison by tphyahoo
in thread string comparison by Madam

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