tmux wrapper script

tmuxx.sh

#!/bin/bash

# attach to an existing tmux session, or create one if none exist
# also set up access to the system clipboard from within tmux when possible

if [[ $OSTYPE == darwin* && -x $(command -v reattach-to-user-namespace) ]]; then
	# on OS X force tmux's default command to spawn a shell in the user's namespace
	# https://github.com/ChrisJohnsen/tmux-MacOSX-pasteboard
	tweaked_config=$(cat $HOME/.tmux.conf <(echo 'set-option -g default-command "reattach-to-user-namespace -l $SHELL"'))

	tmux attach || tmux -f <(echo "$tweaked_config") new-session
else
	tmux attach || tmux new-session
fi