On Mon, Jul 12, 2004 at 12:34:40 -0400, Martinez, Michael wrote: > Is there a way to reacquire controlling terminal status on a process > that was backgrounded by the shell using nohup? The nohup program (it's not a built-in) has nothing to do with controlling terminals. The only thing it does is it sets handler for SIGHUP to SIG_IGN and execs the process. So we are at what the shell does. If the shell has job control, it can do it. See the jobs, fg and bg builtins. Once the parent shell is dead, there is no return. Well, it is STILL the controlling tty of that process (noone has given it up, actualy. But noone knows now. On the other hand if the process actualy gives up on the controlling tty, either by explicit ioctl or by calling setsid (nohup does not do either), there is no way back. But it can open another tty and make it it's controlling tty, if it's not controlling other group yet. ------------------------------------------------------------------------------- Jan 'Bulb' Hudec <bulb@ucw.cz>
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