screen: Setsid

 
 20.19 Setsid
 ============
 
  -- Command: setsid state
      (none)
      Normally 'screen' uses different sessions and process groups for
      the windows.  If setsid is turned 'off', this is not done anymore
      and all windows will be in the same process group as the screen
      backend process.  This also breaks job-control, so be careful.  The
      default is 'on', of course.  This command is probably useful only
      in rare circumstances.