How to close other windows in tmux?
Solution 1:
With the window you want to keep as the current window, just call next-window and kill-window repeatedly, until next-window fails:
while tmux next-window 2> /dev/null; do
tmux kill-window
done
Solution 2:
For easy copying, tmux >= 1.7:
tabo() { tmux kill-window -a; }
Thanks Chris Johnsen.