Grabbing hold of logged out but active tty

[Oren Baum]

UpOnlineHi,

  I'm running 4.10 and was wondering if there's a trick to regaining control of another tty session that is still running (under ps) but I (the user) have been logged out. This happens to me on occasion when I'm running some programs in the background and am logged out by the shell.

  Thank you,

  Oren