My tmux launch script for the filament project.

filament.sh

#!/bin/bash

tmux detach

tmux has-session -t filament
if [ $? != 0 ]
then
  tmux new-session -s filament -n editor -d
	tmux send-keys -t filament 'cd ~/Sites/filament' C-m

	tmux new-window -n console -t filament
	tmux send-keys -t filament:1 'clear && cd ~/Sites/filament && git status' C-m

	tmux split-window -h -p 30 -t filament:1.0
	tmux send-keys -t filament:1.1 'clear && cd ~/Sites/filament && rails console' C-m

	tmux split-window -v -p 20 -t filament:1.0
	tmux send-keys -t filament:1.2 'cd ~/Sites/filament && clear && bundle exec rails server -p 5000' C-m

	tmux select-pane -t filament:1.0
	tmux select-window -t filament:1
fi

tmux attach -t filament