tmux
or
tmux new -s "name_of_session"
From within a tmux session: ctrl+b d
tmux ls
tmux attach # Attach last session
or
tmux attach -t 0 # Attach session with tmux list id
or
tmux attach -t "name_of_session" # attach named session
ctrl+b c
ctrl+b n # goes to next window
ctrl+b p # goes to previous window
ctrl+b %
ctrl+b "
ctrl+b arrow-key
arrow-key
is the literal up, down, left, right keys.
ctrl+d
or
exit