Can't find coucbase-cli command

I need to change the full administrator password on my couchbase community stand-alone node. From the docs it looks that the best way to do this is using the couchbase-cli from the linux (ubuntu) prompt.

My problem is that the OS can not find such a command. Did I miss an installation step someplace or do I need be in a certain folder for the OS to find the couchbase-cli command? I don’t see a way to change the full admin password from the web admin console. Is there another way?

check installation directory. linux (/opt/couchbase/bin)

Also check top right corner in Administrator console

Screen Shot 2022-03-21 at 2.19.35 PM