Multiplex and Process Detachment
================================

* ``screen``
* ``tmux``

.. code-block:: bash

    # screen tool

    # -d detached, -m create new terminal, -S to give the session a name, -dmS
    screen -dmS sx_tail tail -f /var/log/dmesg

    # tail without the -f will naturally exit
    screen -dmS sx_tail tail /var/log/dmesg

    # can call with sudo
    screen -dmS sx_system bash -c "sudo systemctl status NetworkManager"


    # update and upgrade
    screen -dmS sx_update bash -c "sudo apt -y update && sudo apt -y upgrade"


    # stopping the detached processes by their names
    screen -S sx_tail -X quit
    screen -S sx_system -X quit

    ssh mk@nuc 'screen -dmS sx_tail tail -f /var/log/dmesg'


    # for each active, named screen sessions, quit each one
    for k in $(screen -ls | python -m xbin.screen_split); do screen -S $k -X quit; done



    #Tmux tool similar to screen
    tmux new-session -d -s tx_tail "bash -c 'tail -f /var/log/dmesg'" # run in background

    tmux list-sessions

    tmux attach-session -t tx_tail # atach session by name

    tmux kill-session -t tx_tail # kill a session by name