manage long running sessions with "screen" on linux OS - handy utility for Oracle APPS DBA for cloning, patching etc

 n Oracle E-Business Suite (EBS), there is no standard -S flag for the primary cloning commands (adpreclone.pl or adcfgclone.pl). 

However, your query likely refers to a specific usage of the screen utility in Linux/UNIX, which DBAs use to run long-running cloning processes in the background.

Running Clone Commands in screen 

DBAs use screen to ensure a clone isn't interrupted if their network connection drops.

• To start a new session:
  screen -S clone_session (The -S flag here simply names the session "clone_session" for easy identification).
• To run the clone inside the screen:
  bash

  perl adcfgclone.pl appsTier
  

  Use code with caution.
• To detach (leave it running): Press Ctrl + A then D.
• To re-attach later:
  screen -r clone_session