screen -> enter
creates / starts a screen session

ctrl + a, c
creates a new screen

like above command, you can create n no of screens and run different commands in each screen

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ctrl + a, "
lists all the screens in current session

ctrl + a, A
rename a screen

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ctrl + a, d
detach from current session

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screen -> enter
creates a new screen session

screen -ls
lists all the screen sessions

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ctrl + a
:sessionname new_session_name
renames the session

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ctrl + a, k
kills current screen and switches to most recent screen

ctrl + a, \
kills all screens of a session

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ctrl + a, esc
you can now scroll through the output of the screen