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Accepted Answer
Thanks again, Well, perhaps I spoke inelegantly … I am using Amazon Linux which in my experience has worked with ordinary Ubunto commands.
Amazon Linux AMI 2017.03.0 (HVM)
I am logged in as ec2-user, the AWS standard, with ppk file security
Thanks once again. After posting my question in this forum, I opened a support ticket with AWS tech. When this occurred the first time since I was working on a new installation, rather than solving on the terminal side, I just reinstalled the application. Now, with it happening a second time, I would like to figure out what is going on if for no other reason than I still have not been able to modify the file upload size in the php.ini. But, that is another matter… I have read those postings as well, but each installation is a bit different.