gistfile1.sh

#!/bin/bash

declare -r SESSION_NAME=work

# If we don't have a session, then create one with the default windows.
if ! tmux has-session -t $SESSION_NAME 2>/dev/null; then
  # Create a new session with the first window named "emacs". Immediately detach.
  tmux new-session -d -n emacs -s $SESSION_NAME
  # Create a new window named dev. Repeat this for as many new windows you like.
  tmux new-window -n dev -t $SESSION_NAME

  # Start emacs in the emacs window.
  tmux send-keys -t $SESSION_NAME:emacs '$EDITOR -nw'
  # Go to the the code directory in the dev window.
  tmux send-keys -t $SESSION_NAME:dev 'cd ~/code' C-m

  # Select emacs so that we start here.
  tmux select-window -t $SESSION_NAME:emacs
fi
# Attach tmux while detaching any existing clients.
tmux -2 -u attach -d -t $SESSION_NAME