This file is indexed.

/usr/lib/pd/extra/iemmatrix/matrix~-help.pd is in pd-iemmatrix 0.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#N canvas 59 -12 889 589 12;
#X obj 68 271 osc~ 100;
#X obj 68 297 *~ 0.2;
#X obj 112 320 osc~ 1000;
#X obj 112 346 *~ 1.5;
#X obj 157 295 osc~ 432;
#X obj 68 411 env~;
#X floatatom 68 435 4 0 0;
#X obj 127 410 env~;
#X floatatom 127 434 4 0 0;
#X obj 187 410 env~;
#X floatatom 187 434 4 0 0;
#X obj 247 409 env~;
#X floatatom 247 433 4 0 0;
#X floatatom 284 350 4 0 0;
#X text 332 353 fade time in [ms];
#X msg 265 100 bang;
#X obj 265 127 mtx_eye 3 4;
#X msg 362 100 bang;
#X obj 362 127 mtx_egg 3 4;
#X msg 261 179 bang;
#X msg 362 178 bang;
#X obj 261 206 mtx_ones 3 4;
#X obj 362 205 mtx_zeros 3 4;
#X obj 68 371 matrix~ 3 4 100 .......;
#X obj 98 32 matrix~;
#X text 174 24 matrix-multiply m IN~signals to n OUT~signals;
#X text 174 37 matrices are interpolated a la line~;
#X text 473 91 the one-before-last inlet eats;
#X text 476 104 matrix-messages to control the gains;
#X text 475 117 of the matrix~;
#X text 484 333 the last inlet gets the fade-time between two matrix-messages.
;
#X obj 78 505 matrix~;
#X text 154 503 creation: "matrix~ [<num_in> [<num_out> [<fade_time>]]]
;
#X connect 0 0 1 0;
#X connect 1 0 23 0;
#X connect 2 0 3 0;
#X connect 3 0 23 1;
#X connect 4 0 23 2;
#X connect 5 0 6 0;
#X connect 7 0 8 0;
#X connect 9 0 10 0;
#X connect 11 0 12 0;
#X connect 13 0 23 4;
#X connect 15 0 16 0;
#X connect 16 0 23 3;
#X connect 17 0 18 0;
#X connect 18 0 23 3;
#X connect 19 0 21 0;
#X connect 20 0 22 0;
#X connect 21 0 23 3;
#X connect 22 0 23 3;
#X connect 23 0 5 0;
#X connect 23 1 7 0;
#X connect 23 2 9 0;
#X connect 23 3 11 0;