Somewhere along the line when I was installing NVDIA drivers and toolkits, I must have changed too many files to very liberal permissions. The suggested result was to run the two commands shown at the start of this string.
I was warned the commands would take a long time to run this and they did.
These commands did not get everything, but they got a lot. I ended up with some directories in a dark green rectangle and permissions like this
drwxrwxrwx james james Vurtualbox VMS
to get the dark green reactangle to go away, I changed permissions to
drwxrwxr-x james james Vurtualbox VMS
I was warned the this dark green triangle enclosing a directory name indicated that these directories have far too liberal/open permissions. I must change them or when my computer is scanned again by network security, I will be booted off the network.
I then ran
sudo yum reinstall filesystem
sudo yum reinstall coreutils
This seemed to get some more directory permissions changed and I was very happy.
All of the directories and files from Desktop and on were now just fine.
However, directories closer to root - not so much.
Many, but not all had their name enclosed in a green rectangle. Again, this signaled far too liberal permisisons.
So I noted that no filenames only directories names were enclosed in a green rectangle. That is whre I must concentrate.
I am now doing just that. As I said most have been corrected, but some have not.
Again no filenames in dark green reactangle, only directory names.
This indicated a much more tractable problem; there a far fewer directories than filenames.
That is why I am only worrying about directories; it should be much easier.
The statement by someone in this thread indicated that those two commands at the start of the thread chanage only filenames permissions.
I believe the easier way to go is too change things back. A reinstall for me will take a long time-not 20-30 minutes.