Introduction C-a == Ctrl-a M-a == Alt-a General :q close :w write/saves :wa[!] write/save all windows [force] :wq write/save and close
tmux cheat sheet (C-x means ctrl+x, M-x means alt+x) Prefix key The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf: remap prefix to Control + a