/usr/share/psychtoolbox-3/PsychOneliners/PsychtoolboxRoot.m is in psychtoolbox-3-common 3.0.9+svn2579.dfsg1-1.
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 9 10 11 12 13 14 | function path=PsychtoolboxRoot
% path=PsychtoolboxRoot
% Returns the path to the Psychtoolbox folder, even if it's been renamed.
% Also see matlaboot, DiskRoot, [and maybe DesktopFolder].
% 6/29/02 dgp Wrote it, based on a suggestion by David Jones <djones@ece.mcmaster.ca>.
% 9/10/02 dgp Cosmetic.
% 1/24/08 mpr modified help because MatlabRoot doesn't work, DesktopFolder
% appears no longer to exist, and neither did DiskRoot, but I'd
% already written a function to do what that did so I donated it
path=which('PsychtoolboxRoot');
i=find(filesep==path);
path=path(1:i(end-1));
|