List key bindings(shortcuts)
help
// what it does
Prints every key binding tmux currently has loaded — the built-in defaults plus anything you added in ~/.tmux.conf. It's the definitive way to check which key does what in your setup, especially after editing your config. The Ctrl+b ? shortcut opens the same list inside a scrollable copy-mode pane.
// shortcut
Ctrl + b?
// shell
$ tmux list-keys// tmux command
: list-keys// gotcha
The Ctrl+b ? popup is a copy-mode buffer, so scroll it with the arrow keys or Page Up/Down and press q to close it — your normal prefix shortcuts don't work while it's open.