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my @list = glob("$home/*.$type");
foreach my $file (@list) 
...
{
   $result = `mv $file $home/$basedir/$key`;
}

foreach my $file (glob("$home/*.$type"), glob("$home/*.\U$type")) 
{
   system('mv', $file, "$home/$basedir/$key") == 0 or
      warn "Could not move $file: $!";
}

system('mkdir', '-p', "$home/$basedir/$key") 
   unless -d "$home/$basedir/$key";