Bash shell and ping command on F5 rseries

Partial progress. On version 1.8.3 EHF after I commit:

system aaa authentication config superuser-bash-access true

it enabled me to run the following:

lab-f5os-1# system diagnostics net-utils ?

Possible completions:

dig              Run dig

ping            Run ping

ping6         Run ping6

shell           Run the diagnostic shell tool.

tracepath     Run tracepath

tracepath6   Run tracepath6

traceroute   Run traceroute

traceroute6    Run traceroute6

Although the "shell" command is listed it doesn't do much. I expected it to put me in the bash prompt but it doesn't do much of anything. I assume it is still under development.

lab-f5os-1# system diagnostics net-utils shell ?

Please use any of listed commands : ['ping', 'ping6', 'traceroute', 'traceroute6', 'tracepath', 'tracepath6', 'dig'].

Enter exit to return to CLI.

For detailed help enter command -h. Example: ping -h

Enter command: