Indeed, the output from that "ls -l" command shows that you do not own or have write permission to that library file (or any of the other 'denied' ones) It was possibly installed by an admin.
If you want to clean up, I would suggest a sequence like this:
cd
mv abin abin.corrupt
cp -r abin.corrupt abin
@update.afni.binaries -defaults
That will leave the current abin as abin.corrupt, if you ever want to mess with it (deleting might be fine, but that might require admin rights).
Give that a try.
- rick