/usr/lib/pd/extra/pdp_sub.pd is in pd-pdp 1:0.12.5-1.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | #N canvas 577 543 450 300 10;
#X obj 48 49 inlet;
#X obj 118 47 inlet;
#X obj 47 161 outlet;
#X obj 48 104 pdp_mix2 1 -1;
#X connect 0 0 3 0;
#X connect 1 0 3 1;
#X connect 3 0 2 0;
|