Querying selected attributes for the selected objects?

I want to query what attributes are selected for for a specific object.

For e.g  I select pCube1 and its translate X ? how do I query this with MEL ?

Well you can actually select attributes if you do it in the outliner it looks something like follows:

{
$object = "|top|topShape";
$objnames=`ls -sl -l -o`;
$names=`ls -sl -l`;
string $newSel[];
for($i=0;$i<size($objnames);$i++)
  if ($objnames[$i]==$object) 
    $newSel[size($newSel)]=$names[$i];
print $newSel;
}

But most likely users ask about channelbox selection Which is NOT a normal selection by the way,

channelBox -q -selectedMainAttributes mainChannelBox