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1. After connecting to a machine from PuTTY, terminal, etc., type

   Code Block
   language bash
   screen

2. Run the desired program

3. Use the key sequence

   Ctrl-a + Ctrl-d

   ctrl ad to detach from the screen session, this will keep it running in the background and return to your main shell

   1. Note, if you do not detach the session, you can restore if the connection drops by reconnecting and running screen -r

4. To see a list of active screen sessions, type

   Code Block
   language bash
   screen -ls

5. Reattach to the screen session by typing

   Code Block
   language bash
   screen -r [your session id here]

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