#!/bin/sh
test -z "$1" || test -z "$2" &&
{ >&2 echo "usage: ${0##*/} window path command"; exit 1; }

tmux select-window -t "$1" 2>/dev/null ||
if test -n "$3"
then tmux new-window -n "$1" -c "$HOME/$2" "$3"
else tmux new-window -n "$1" -c "$HOME/$2"
fi