+my $du=$ENV{'YPPSC_DICTUPDATES'};
+chdir $du or die "$du $!"
+ if defined $du;
+
+my $instance= $du;
+$instance =~ s,ypp-sc-tools,,ig;
+$instance =~ s,ypp,,ig;
+$instance =~ s,pctb,,ig;
+$instance =~ s,/\W+/,/,g;
+$instance =~ s,/+$,,;
+$instance =~ s,^.*/,,;
+