Not only did they reply promptly, but they pointed me to the exact information that I needed to solve my problem. As a professor of computer science I know a thing or two about computing, but I am new to WordPress and I am not a Linux specialist. I can follow the directions in technical documentation, but the trick is finding the right documentation!
I had googled my problem extensively, but I didn’t know about WP-CLI, which A2 Hosting tech support pointed me to. I followed their directions to download and installed it and then was able to my WordPress installation. I would not have known about WP-CLI without their help. Less