pdxtcluster -n "/xerox_res/clustr.lib"
pdxtcluster -f cls2alb -n "clustr.cls"
pdxtcluster -f add -n "clustr.cls" -c cl2=2 -c cl3=3
pdxtcluster -f remove -n "clustr.cls" -c cl2 -c cl3
pdxtcluster -f list -n "clustr.cls"