If all of your file names are essentially the same, except for the numeric part, then all you should really
have to do is change your comparison operator.
foreach my $file (sort {$a <=> $b} keys %hash) {
print "$key \n";
}
This will work even if the Numeric part of the file is in the middle of the file name.
Ex. perl -e 'print qq{[$_]\n} for ( sort { $a <=> $b } qw(file1 file10z fi
+le11s file2q file20z file21f) )'
Wonko.
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