I can't get this sort - not sure if it's because i'm mixing up array/hash, or if i'm just mixed up period:

#filenames looks like this: category_Title Words_1 

#SEARCH THROUGH THE CONTENT DIRECTORY AND FIND THE FILES THAT MATCH
chdir("$contentdir");#change to the content directory
my $stuff = ".";#make it $_
opendir THISDIR, "$stuff";#open the content directory
my @submenu = readdir THISDIR;#put the names of the files in an array
closedir THISDIR;

($sub1, $sub2, $sub3) = split (/\_/, $_,3);#split it on the underscore
+s

$sub3 = sort { $b <=> $a } $sub3;
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doesn't work. i've also tried:

my @newarray = ($sub1,$sub2,$sub3);
@newarray = sort { $a->[2] cmp $b->[2] } @newarray;
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and a million other wrong ways. please advise. thank you!