[SOLVED] Reassign process parent / PPID

[jon.mithe]

Hi,

Is it possible to reassign the PPID / parent process ID of a process (i.e. shift it to a different node in the process tree).

For example, I can open a terminal (process PPID=1) and execute a program in it (process PPID = terminal PID). Later I want to reassign the PPID to that of the GUI apps or something else (another application) - is that possible?

I can execute programs in the terminal using nohup command, which assigns the process a PPID of 1 - but that does not apply to already running processes or shifting to a different process. Also I can use screen to get applications running when the terminal closes, but again not useful for running processes / creating that process tree relationship when things get killed.

Thanks for any help, Jon

[Yannick Le Saint kyncani]

Is it possible to reassign the PPID / parent process ID of a process (i.e. shift it to a different node in the process tree).

Nope, a process will get adopted by init if its parent die/exit, other than that, nothing can change a ppid (AFAIK).

[sdennie]

I'm not sure if it's possible to reassign a process to a new parent however, you can disassociate it while it's running using "disown". For example:

gcalctool &
exit

The calculator closes.

gcalctool &
disown
exit

The calculator stays open. You can also use "disown -a" to disown all background child processes of the currently shell.

[jon.mithe]

Thats worked great thanks