$ tmux
C+b :kill-pane // or C+B x
C+b $ - rename session
C+b d - detach from session
C+b c - create new window
C+b , - rename window
C+b & - close window
C+b p - previous window
C+b n - next window
C+b l - last window C+b % - horizontal split C+b " - vertical split