for my $d (sort {$a cmp $b} keys %{{map {$_ => $hash{$_}{desc}} keys %
+hash}} ) {
   ...
   ...
}

[download]
is unreadable. It should be 
my %descs = map { $_ => $hash{$_}{desc} } keys %hash;

for my $d ( sort keys %descs ) {
   ...
   ...
}

[download]
The answer to your answer is now obvious. 
my %descs = map { $_ => $hash{$_}{desc} } keys %hash;

for my $d ( sort { $descs{$a} cmp $descs{$b} } keys %desc ) {
   ...
   ...
}

[download]

Update: On the other hand, why are you building a hash at all?? 

my %descs = map { $_ => $hash{$_}{desc} } keys %hash;

for my $d ( sort { $descs{$a} cmp $descs{$b} } keys %descs ) {
   my $desc = $descs{$d};
   ...
}

[download]
can be written as 
for my $d ( sort { $hash{$a}{desc} cmp $hash{$b}{desc} } keys %hash ) 
+{
   my $desc = $hash{desc}{$d};
   ...
}

[download]

In reply to Re: Sort of anonymous hash by ikegami
in thread Sort of anonymous hash by larsss31

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