How to link up Progress bar window for this script.
This script is for clearing DAG History.
select -all;
string $select[] = `ls -tr `;
string $poly[] = `filterExpand -sm 12 $select`;
string $de[] = `ls -sl -as`;
select -d $de;
select -d $poly;
delete;
select -r $poly;
sets -e -forceElement initialShadingGroup;
select -cl $poly ;
print ("Cleared DAG History");