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mode

cyber-mux mode

Section titled “cyber-mux mode”

Print just the detected backend name: tmux, rmux, herdr, wezterm, zellij, cmux, otty, or none. The one-line version of doctor for scripts that only need the backend name.

mode reports the drivable backend, so a mux that is recognized but cannot be driven answers none. GNU screen is the one such mux today: inside it, mode prints none while doctor still names screen as the multiplexer it detected. Ask doctor when you want to know what you are inside; ask mode when you want to know what can be driven.

Usage

Terminal window
cyber-mux mode

Examples

Section titled “Examples”
Terminal window
cyber-mux mode
# tmux
Terminal window
# Branch a script on the backend
if [ "$(cyber-mux mode)" = "none" ]; then
  echo "not inside a multiplexer"
fi