Charlie Kravetz:
There has never been mention of any other method to exit this new shell command.
Probably because the people knowledgeble in the subject thought that it went without saying. It plainly doesn't, because this is the third place where the whole it-is-the-telnet-escape-sequence thing has come up. From the machinectl manual :
This command runs the specified executable with the specified arguments, or/bin/sh if none is specified.
It went without saying how one exits /bin/sh . (-:
