i already found a small script thanks even though,

string $sel[] = `ls -sl`;
vector $positions[];
string $command = "curve ";
int $i = 0;
for($i = 0; $i<size($sel); $i++)
{
$positions[$i] = `pointPosition $sel[$i]`;
$command = $command+"-p "+$positions[$i]+" ";
}
eval($command);