Insall it via running command sudo apt install screen
screen -S newtab . Run whatever process you want to run in that screen.ctrl+a+d to exist/deattach from the screen. ( The program running in screen will continue running even after you detach from the screen )screen -r -d newtab to reattach the previous screen.screen ls to get display the currently opened screens including those in the backgrounds.screen -XS newtab quit to delete the screen. ( Here you can replace newtab with your screen I'd wich look something like 9066.pts-0.ip-172-31-23-158. (screen -XS (screenname) quit)screen --help to know more advanced commands if screen.Insall Tmux on Ubuntu and Debian via running command sudo apt-get
install tmux
tmux or to start name session you can start by typing tmux new -s newtab. Now you can run whatever u want to run in that new session.ctrl+b+d to exist/deattach from the session. ( The program running in tmux will continue running even after you detach from the session )tmux ls to get list of all session running in background.tmux attach-session -t 0 ( if u didn't created named screen then see the name of running screen from tmux ls command ) or tmux attach-session -t newtab (if you created a names session).tmux kill-session to terminate the last active session if no session is specified. If you want to kill specific session then type tmux kill-session -t newtab.