Question : expect: when does a spawned process terminate?

when an expect script spawns a process, say, telnet

spawn telnet $target

the script does its thing then exits.  Is the telnet session still hanging around? Or does it close when the script terminates?

Thanks!

Answer : expect: when does a spawned process terminate?

telnet will close when the script finishes (because it gets end of file on its stdin).
In general the easiest way to terminate a spawned process is to exit the expect script; otherwise you have to "expect eof" "wait" and so on