I don't know much about Expect, but what you are calling as command is really calling a shell executable and passing it that command. I venture that whatever shell you are using is not passing the exit code upwards, or, as a shell, is actually running OK and thus exits with exit code 0. Also see the documentation of Expect on ->exitstatus maybe.

In reply to Re: Incorrect value 0 reported in command execution return value variable $?, when trying with expect->send command by Corion
in thread Incorrect value 0 reported in command execution return value variable $?, when trying with expect->send command by Davewhite

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