Real-time connection

If using the grep command you can filter the IP you want, and that IP equals to the virtual server IP, it should show if you specify it as cs-server-addr.

As it is not showing, you need to open a ticket with F5 support, to see if there is any known issue for the version you are using.

In relation to the man grep command, you need to run it from bash.

You ran it in tmsh that is the F5 shell, you need to run it on bash that is Linux shell.

If your user has access to bash, just type bash in tmsh.

About the second command, if you are listing an iApp, you need to specify the full path to the virtual server.

You need to read about iApps to understand that, he is an article about iApps:

https://devcentral.f5.com/s/articles/getting-started-with-iapps-a-conceptual-overview-20524