Send a command to the remote host and receive the results
on your local host:
>>-RSH--+-----+--+---------+--+-----+--+-------------------+---->
'- -?-' '- -b tab-' '- -d-' '- -l user⁄password-'
.- -s 514--.
>--+----------+--foreign_host--command-------------------------><
'- -s port-'