Android terminal--telnet missing commands, receiving this error : KO: unknown command, try 'help'
You are not authenticated.
Obtain the content of /Users/XXXXX/.emulator_console_auth_token and after the OK prompt enter
auth <auth_token>
For amateurs' like me what diego-torres-milano meant :
cat /Users/XXXXX/.emulator_console_auth_token<copy the above contents - auth_token>telnet localhost <portnumber> (mostly 5554)auth auth_token