/usr/share/doc/pmw/examples/ex21 is in pmw-doc 1:4.27-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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nocheck
notime
draw save
headbottom origin
enddraw
draw connect
origin sub 3 add dup 3 add 2 div
3 1 roll exch 2 sub moveto
-12 lineto
3 headbottom 2 sub lineto
stroke
enddraw
[stave 1 treble 1]
b
[draw save]
e c'-g-a-b-
[draw connect]
ag |
|